{"v":"2.0","page_type":"product","title":"Insulated Pipe Jacket, Cover Type Insulation Jacket, For Fitting Type Straight Pipe Sections, Facing Material Silicone Coated Fiberglass Cloth, Insulation Material Fiberglass; Mineral Wool, Maximum Ambient Temperature 900 Degrees F, Cover Width 18 in, Cover Length 42 in, Thickness 3 in, Color Gray, Fastening System Quick Release Fabric Flap and Wiretwists, For Minimum Circumference 31 in, For Maximum Circumference 38 in, R Value 0.48, For Valve Type Universal, Standards OSHA, Market Industrial","breadcrumbs":[{"label":"Home","href":"/python/html6/index.html"},{"label":"Brands","href":"/python/html6/menu_brand_index/menu_brand_index_brands_87101ba214.html"},{"label":"Unitherm","href":"/python/html6/menu_brand_products/1000/154000/menu_brand_products_UNITHERM_1_e6e5401c9c.html"},{"label":"IW4218","href":null}],"content":{"product":{"mpn":"IW4218","manufacturer":"Unitherm","brand":"Unitherm","brand_url":"/python/html6/menu_brand_products/1000/154000/menu_brand_products_UNITHERM_1_e6e5401c9c.html","title":"Insulated Pipe Jacket, Cover Type Insulation Jacket, For Fitting Type Straight Pipe Sections, Facing Material Silicone Coated Fiberglass Cloth, Insulation Material Fiberglass; Mineral Wool, Maximum Ambient Temperature 900 Degrees F, Cover Width 18 in, Cover Length 42 in, Thickness 3 in, Color Gray, Fastening System Quick Release Fabric Flap and Wiretwists, For Minimum Circumference 31 in, For Maximum Circumference 38 in, R Value 0.48, For Valve Type Universal, Standards OSHA, Market Industrial","description":"","attributes":[{"name":"Brand name","values":[{"value":"Unitherm","url":"/python/html6/menu_attr_pair/1000/86000000/86932000/menu_attr_pair_Brandname_Unitherm_1_42420adf50.html"}],"name_url":"/python/html6/menu_attr_pair/1000/86000000/86932000/menu_attr_pair_Brandname_Unitherm_1_42420adf50.html"},{"name":"Manufacturer name","values":[{"value":"Unitherm","url":"/python/html6/menu_attr_pair/1000/94000000/94981000/menu_attr_pair_Manufacturername_Unitherm_1_ff9a0980c9.html"}],"name_url":"/python/html6/menu_attr_pair/1000/94000000/94981000/menu_attr_pair_Manufacturername_Unitherm_1_ff9a0980c9.html"},{"name":"Manufacturer","values":[{"value":"Unitherm","url":"/python/html6/menu_attr_pair/1000/178000000/178128000/menu_attr_pair_Manufacturer_Unitherm_1_d60cb974f0.html"}],"name_url":"/python/html6/menu_attr_pair/1000/178000000/178128000/menu_attr_pair_Manufacturer_Unitherm_1_d60cb974f0.html"},{"name":"CategoryId","values":[{"value":"17008","url":"/python/html6/menu_attr_pair/1000/93000000/93994000/menu_attr_pair_CategoryId_17008_1_652b5db039.html"}],"name_url":"/python/html6/menu_attr_pair/1000/93000000/93994000/menu_attr_pair_CategoryId_17008_1_652b5db039.html"},{"name":"CategoryIdL1","values":[{"value":"33","url":"/python/html6/menu_attr_pair/1000/209000000/209841000/menu_attr_pair_CategoryIdL1_33_1_e87207319e.html"}],"name_url":"/python/html6/menu_attr_pair/1000/209000000/209841000/menu_attr_pair_CategoryIdL1_33_1_e87207319e.html"},{"name":"CategoryIdL2","values":[{"value":"4582","url":"/python/html6/menu_attr_pair/1000/182000000/182873000/menu_attr_pair_CategoryIdL2_4582_1_834c434145.html"}],"name_url":"/python/html6/menu_attr_pair/1000/182000000/182873000/menu_attr_pair_CategoryIdL2_4582_1_834c434145.html"},{"name":"CategoryIdL3","values":[{"value":"17008","url":"/python/html6/menu_attr_pair/1000/92000000/92104000/menu_attr_pair_CategoryIdL3_17008_1_c339411091.html"}],"name_url":"/python/html6/menu_attr_pair/1000/92000000/92104000/menu_attr_pair_CategoryIdL3_17008_1_c339411091.html"},{"name":"CategoryL1","values":[{"value":"Plumbing","url":"/python/html6/menu_attr_pair/1000/163000000/163079000/menu_attr_pair_CategoryL1_Plumbing_1_b39a46744e.html"}],"name_url":"/python/html6/menu_attr_pair/1000/163000000/163079000/menu_attr_pair_CategoryL1_Plumbing_1_b39a46744e.html"},{"name":"CategoryL2","values":[{"value":"Pipes, Valves & Fittings","url":"/python/html6/menu_attr_pair/1000/176000000/176073000/menu_attr_pair_CategoryL2_PipesValvesFittings_1_f7fc40bcdb.html"}],"name_url":"/python/html6/menu_attr_pair/1000/176000000/176073000/menu_attr_pair_CategoryL2_PipesValvesFittings_1_f7fc40bcdb.html"},{"name":"CategoryL3","values":[{"value":"Pipe & Tubing Insulation","url":"/python/html6/menu_attr_pair/1000/75000000/75294000/menu_attr_pair_CategoryL3_PipeTubingInsulation_1_41e53c0103.html"}],"name_url":"/python/html6/menu_attr_pair/1000/75000000/75294000/menu_attr_pair_CategoryL3_PipeTubingInsulation_1_41e53c0103.html"},{"name":"CategoryL4","values":[{"value":"Pipe Insulation Jackets","url":"/python/html6/menu_attr_pair/1000/11000000/11218000/menu_attr_pair_CategoryL4_PipeInsulationJackets_1_5c0d9a9eb6.html"}],"name_url":"/python/html6/menu_attr_pair/1000/11000000/11218000/menu_attr_pair_CategoryL4_PipeInsulationJackets_1_5c0d9a9eb6.html"},{"name":"DimensionUnit","values":[{"value":"inch","url":"/python/html6/menu_attr_pair/1000/10000000/10300000/menu_attr_pair_DimensionUnit_inch_1_f16129611b.html"}],"name_url":"/python/html6/menu_attr_pair/1000/10000000/10300000/menu_attr_pair_DimensionUnit_inch_1_f16129611b.html"},{"name":"GraingerSku","values":[{"value":"48ZY21","url":"/python/html6/menu_attr_pair/1000/240000000/240736000/menu_attr_pair_GraingerSku_48ZY21_1_899c4f14e6.html"}],"name_url":"/python/html6/menu_attr_pair/1000/240000000/240736000/menu_attr_pair_GraingerSku_48ZY21_1_899c4f14e6.html"},{"name":"UPC","values":[{"value":"858163006366","url":"/python/html6/menu_attr_pair/1000/165000000/165024000/menu_attr_pair_UPC_858163006366_1_92c3b5bc7e.html"}],"name_url":"/python/html6/menu_attr_pair/1000/165000000/165024000/menu_attr_pair_UPC_858163006366_1_92c3b5bc7e.html"},{"name":"UnitOfMeasure","values":[{"value":"EA","url":"/python/html6/menu_attr_pair/1000/176000000/176420000/menu_attr_pair_UnitOfMeasure_EA_1_f926bb2044.html"}],"name_url":"/python/html6/menu_attr_pair/1000/176000000/176420000/menu_attr_pair_UnitOfMeasure_EA_1_f926bb2044.html"},{"name":"Weight","values":[{"value":"6","url":"/python/html6/menu_attr_pair/1000/223000000/223262000/menu_attr_pair_Weight_6_1_bb54eecb38.html"}],"name_url":"/python/html6/menu_attr_pair/1000/223000000/223262000/menu_attr_pair_Weight_6_1_bb54eecb38.html"},{"name":"WeightUnit","values":[{"value":"lbs","url":"/python/html6/menu_attr_pair/1000/60000000/60642000/menu_attr_pair_WeightUnit_lbs_1_dce479c2aa.html"}],"name_url":"/python/html6/menu_attr_pair/1000/60000000/60642000/menu_attr_pair_WeightUnit_lbs_1_dce479c2aa.html"},{"name":"cali_prop65_orglabel","values":[{"value":"False","url":"/python/html6/menu_attr_pair/1000/208000000/208722000/menu_attr_pair_caliprop65orglabel_False_1_60e58a876a.html"}],"name_url":"/python/html6/menu_attr_pair/1000/208000000/208722000/menu_attr_pair_caliprop65orglabel_False_1_60e58a876a.html"},{"name":"cali_prop65_whtlabel","values":[{"value":"False","url":"/python/html6/menu_attr_pair/1000/28000000/28565000/menu_attr_pair_caliprop65whtlabel_False_1_02fc99d251.html"}],"name_url":"/python/html6/menu_attr_pair/1000/28000000/28565000/menu_attr_pair_caliprop65whtlabel_False_1_02fc99d251.html"},{"name":"countryOfOrigin","values":[{"value":"US","url":"/python/html6/menu_attr_pair/1000/100000000/100875000/menu_attr_pair_countryOfOrigin_US_1_37c5174dcd.html"}],"name_url":"/python/html6/menu_attr_pair/1000/100000000/100875000/menu_attr_pair_countryOfOrigin_US_1_37c5174dcd.html"},{"name":"height","values":[{"value":"6","url":"/python/html6/menu_attr_pair/1000/254000000/254133000/menu_attr_pair_height_6_1_af25c5b13e.html"}],"name_url":"/python/html6/menu_attr_pair/1000/254000000/254133000/menu_attr_pair_height_6_1_af25c5b13e.html"},{"name":"jsonUrlData","values":[{"value":"924526ffbdad25e5923b","url":"/python/html6/menu_attr_pair/1000/175000000/175382000/menu_attr_pair_jsonUrlData_924526ffbdad25e5923b_1_0a1fe0260a.html"}],"name_url":"/python/html6/menu_attr_pair/1000/175000000/175382000/menu_attr_pair_jsonUrlData_924526ffbdad25e5923b_1_0a1fe0260a.html"},{"name":"length","values":[{"value":"24","url":"/python/html6/menu_attr_pair/1000/263000000/263401000/menu_attr_pair_length_24_1_0fb3302d16.html"}],"name_url":"/python/html6/menu_attr_pair/1000/263000000/263401000/menu_attr_pair_length_24_1_0fb3302d16.html"},{"name":"moq","values":[{"value":"1","url":"/python/html6/menu_attr_pair/1000/164000000/164262000/menu_attr_pair_moq_1_1_29ca727a89.html"}],"name_url":"/python/html6/menu_attr_pair/1000/164000000/164262000/menu_attr_pair_moq_1_1_29ca727a89.html"},{"name":"MPN","values":[{"value":"IW4218","url":"/python/html6/menu_attr_pair/1000/176000000/176274000/menu_attr_pair_MPN_IW4218_1_fd9a6eb35f.html"}],"name_url":"/python/html6/menu_attr_pair/1000/176000000/176274000/menu_attr_pair_MPN_IW4218_1_fd9a6eb35f.html"},{"name":"multiple","values":[{"value":"1","url":"/python/html6/menu_attr_pair/1000/257000000/257999000/menu_attr_pair_multiple_1_1_2f60c1bab8.html"}],"name_url":"/python/html6/menu_attr_pair/1000/257000000/257999000/menu_attr_pair_multiple_1_1_2f60c1bab8.html"},{"name":"qtyInStock","values":[{"value":"0","url":"/python/html6/menu_attr_pair/1000/119000000/119332000/menu_attr_pair_qtyInStock_0_1_38510c9e21.html"}],"name_url":"/python/html6/menu_attr_pair/1000/119000000/119332000/menu_attr_pair_qtyInStock_0_1_38510c9e21.html"},{"name":"qtyInStockOverride","values":[{"value":"Drop Ship","url":"/python/html6/menu_attr_pair/1000/184000000/184534000/menu_attr_pair_qtyInStockOverride_DropShip_1_d4b475040e.html"}],"name_url":"/python/html6/menu_attr_pair/1000/184000000/184534000/menu_attr_pair_qtyInStockOverride_DropShip_1_d4b475040e.html"},{"name":"SKU","values":[{"value":"G4159569","url":"/python/html6/menu_attr_pair/1000/150000000/150444000/menu_attr_pair_SKU_G4159569_1_115a6211ff.html"}],"name_url":"/python/html6/menu_attr_pair/1000/150000000/150444000/menu_attr_pair_SKU_G4159569_1_115a6211ff.html"},{"name":"tierMinQty1","values":[{"value":"1","url":"/python/html6/menu_attr_pair/1000/226000000/226987000/menu_attr_pair_tierMinQty1_1_1_974840705d.html"}],"name_url":"/python/html6/menu_attr_pair/1000/226000000/226987000/menu_attr_pair_tierMinQty1_1_1_974840705d.html"},{"name":"tierPrice1","values":[{"value":"347.99","url":"/python/html6/menu_attr_pair/1000/87000000/87935000/menu_attr_pair_tierPrice1_34799_1_62f70eec57.html"}],"name_url":"/python/html6/menu_attr_pair/1000/87000000/87935000/menu_attr_pair_tierPrice1_34799_1_62f70eec57.html"},{"name":"url","values":[{"value":"https://www.zoro.com/unitherm-12-x-42-l-fiberglass-insulated-pipe-jacket-3-wall-iw4218/i/G4159569/","url":"/python/html6/menu_attr_pair/1000/55000000/55458000/menu_attr_pair_url_httpswwwzorocomunitherm12x42lfiberglassins_1_d6182e676a.html"}],"name_url":"/python/html6/menu_attr_pair/1000/55000000/55458000/menu_attr_pair_url_httpswwwzorocomunitherm12x42lfiberglassins_1_d6182e676a.html"},{"name":"width","values":[{"value":"18","url":"/python/html6/menu_attr_pair/1000/169000000/169066000/menu_attr_pair_width_18_1_aa13c0f650.html"}],"name_url":"/python/html6/menu_attr_pair/1000/169000000/169066000/menu_attr_pair_width_18_1_aa13c0f650.html"},{"name":"Width","values":[{"value":"18 in","url":"/python/html6/menu_attr_pair/1000/105000000/105849000/menu_attr_pair_Width_18in_1_8c882d6227.html"}],"name_url":"/python/html6/menu_attr_pair/1000/105000000/105849000/menu_attr_pair_Width_18in_1_8c882d6227.html"},{"name":"Length","values":[{"value":"42 in","url":"/python/html6/menu_attr_pair/1000/153000000/153431000/menu_attr_pair_Length_42in_1_d3040c17fc.html"}],"name_url":"/python/html6/menu_attr_pair/1000/153000000/153431000/menu_attr_pair_Length_42in_1_d3040c17fc.html"},{"name":"Cover Length","values":[{"value":"42 in","url":"/python/html6/menu_attr_pair/1000/82000000/82963000/menu_attr_pair_CoverLength_42in_1_eeacd53cdc.html"}],"name_url":"/python/html6/menu_attr_pair/1000/82000000/82963000/menu_attr_pair_CoverLength_42in_1_eeacd53cdc.html"},{"name":"For Maximum Outside Diameter","values":[{"value":"12 in","url":"/python/html6/menu_attr_pair/1000/64000000/64393000/menu_attr_pair_ForMaximumOutsideDiameter_12in_1_f6a9446d95.html"}],"name_url":"/python/html6/menu_attr_pair/1000/64000000/64393000/menu_attr_pair_ForMaximumOutsideDiameter_12in_1_f6a9446d95.html"},{"name":"For Minimum Outside Diameter","values":[{"value":"10 in","url":"/python/html6/menu_attr_pair/1000/26000000/26449000/menu_attr_pair_ForMinimumOutsideDiameter_10in_1_0be0223490.html"}],"name_url":"/python/html6/menu_attr_pair/1000/26000000/26449000/menu_attr_pair_ForMinimumOutsideDiameter_10in_1_0be0223490.html"},{"name":"Cover Width","values":[{"value":"18 in","url":"/python/html6/menu_attr_pair/1000/267000000/267314000/menu_attr_pair_CoverWidth_18in_1_6ea0e9d534.html"}],"name_url":"/python/html6/menu_attr_pair/1000/267000000/267314000/menu_attr_pair_CoverWidth_18in_1_6ea0e9d534.html"},{"name":"Item","values":[{"value":"Insulated Pipe Jacket","url":"/python/html6/menu_attr_pair/1000/207000000/207783000/menu_attr_pair_Item_InsulatedPipeJacket_1_e64245ab84.html"}],"name_url":"/python/html6/menu_attr_pair/1000/207000000/207783000/menu_attr_pair_Item_InsulatedPipeJacket_1_e64245ab84.html"},{"name":"Thickness","values":[{"value":"3 in","url":"/python/html6/menu_attr_pair/1000/110000000/110831000/menu_attr_pair_Thickness_3in_1_5f50471dcb.html"}],"name_url":"/python/html6/menu_attr_pair/1000/110000000/110831000/menu_attr_pair_Thickness_3in_1_5f50471dcb.html"},{"name":"Insulation Material","values":[{"value":"Fiberglass, Mineral Wool","url":"/python/html6/menu_attr_pair/1000/164000000/164257000/menu_attr_pair_InsulationMaterial_FiberglassMineralWool_1_3ac7a01f25.html"}],"name_url":"/python/html6/menu_attr_pair/1000/164000000/164257000/menu_attr_pair_InsulationMaterial_FiberglassMineralWool_1_3ac7a01f25.html"},{"name":"Jacket Material","values":[{"value":"Silicone Coated Fiberglass Cloth","url":"/python/html6/menu_attr_pair/1000/78000000/78896000/menu_attr_pair_JacketMaterial_SiliconeCoatedFiberglassCloth_1_1862b86911.html"}],"name_url":"/python/html6/menu_attr_pair/1000/78000000/78896000/menu_attr_pair_JacketMaterial_SiliconeCoatedFiberglassCloth_1_1862b86911.html"},{"name":"Fits Max O D","values":[{"value":"10 in to 12 in","url":"/python/html6/menu_attr_pair/1000/50000000/50184000/menu_attr_pair_FitsMaxOD_10into12in_1_106f0ea7c1.html"}],"name_url":"/python/html6/menu_attr_pair/1000/50000000/50184000/menu_attr_pair_FitsMaxOD_10into12in_1_106f0ea7c1.html"},{"name":"Temp Rating","values":[{"value":"900 Degrees F","url":"/python/html6/menu_attr_pair/1000/253000000/253587000/menu_attr_pair_TempRating_900DegreesF_1_0bcccc390c.html"}],"name_url":"/python/html6/menu_attr_pair/1000/253000000/253587000/menu_attr_pair_TempRating_900DegreesF_1_0bcccc390c.html"},{"name":"Application","values":[{"value":"Couplings, Flanges, Straight Sections of Pipe","url":"/python/html6/menu_attr_pair/1000/118000000/118606000/menu_attr_pair_Application_CouplingsFlangesStraightSectionsofPipe_1_431fbb836b.html"}],"name_url":"/python/html6/menu_attr_pair/1000/118000000/118606000/menu_attr_pair_Application_CouplingsFlangesStraightSectionsofPipe_1_431fbb836b.html"},{"name":"Product Type","values":[{"value":"Insulated Pipe Jacket","url":"/python/html6/menu_attr_pair/1000/174000000/174527000/menu_attr_pair_ProductType_InsulatedPipeJacket_1_6d7e89d459.html"}],"name_url":"/python/html6/menu_attr_pair/1000/174000000/174527000/menu_attr_pair_ProductType_InsulatedPipeJacket_1_6d7e89d459.html"},{"name":"For Valve Type","values":[{"value":"Universal","url":"/python/html6/menu_attr_pair/1000/245000000/245660000/menu_attr_pair_ForValveType_Universal_1_8ab421a3fa.html"}],"name_url":"/python/html6/menu_attr_pair/1000/245000000/245660000/menu_attr_pair_ForValveType_Universal_1_8ab421a3fa.html"},{"name":"Fastening System","values":[{"value":"Quick Release Fabric Flap and Wiretwists","url":"/python/html6/menu_attr_pair/1000/3000000/3385000/menu_attr_pair_FasteningSystem_QuickReleaseFabricFlapandWiretwists_1_66d35d147a.html"}],"name_url":"/python/html6/menu_attr_pair/1000/3000000/3385000/menu_attr_pair_FasteningSystem_QuickReleaseFabricFlapandWiretwists_1_66d35d147a.html"},{"name":"Market","values":[{"value":"Industrial","url":"/python/html6/menu_attr_pair/1000/145000000/145193000/menu_attr_pair_Market_Industrial_1_1e03ecca98.html"}],"name_url":"/python/html6/menu_attr_pair/1000/145000000/145193000/menu_attr_pair_Market_Industrial_1_1e03ecca98.html"},{"name":"R Value","values":[{"value":"0.48","url":"/python/html6/menu_attr_pair/1000/43000000/43397000/menu_attr_pair_RValue_048_1_e9d59f68ce.html"}],"name_url":"/python/html6/menu_attr_pair/1000/43000000/43397000/menu_attr_pair_RValue_048_1_e9d59f68ce.html"},{"name":"For Minimum Circumference","values":[{"value":"31 in","url":"/python/html6/menu_attr_pair/1000/186000000/186892000/menu_attr_pair_ForMinimumCircumference_31in_1_b60cd28aa9.html"}],"name_url":"/python/html6/menu_attr_pair/1000/186000000/186892000/menu_attr_pair_ForMinimumCircumference_31in_1_b60cd28aa9.html"},{"name":"For Maximum Circumference","values":[{"value":"38 in","url":"/python/html6/menu_attr_pair/1000/189000000/189500000/menu_attr_pair_ForMaximumCircumference_38in_1_6c32f25be8.html"}],"name_url":"/python/html6/menu_attr_pair/1000/189000000/189500000/menu_attr_pair_ForMaximumCircumference_38in_1_6c32f25be8.html"},{"name":"For Fitting Type","values":[{"value":"Straight Pipe Sections","url":"/python/html6/menu_attr_pair/1000/48000000/48348000/menu_attr_pair_ForFittingType_StraightPipeSections_1_b173bc3464.html"}],"name_url":"/python/html6/menu_attr_pair/1000/48000000/48348000/menu_attr_pair_ForFittingType_StraightPipeSections_1_b173bc3464.html"},{"name":"Package Quantity","values":[{"value":"1","url":"/python/html6/menu_attr_pair/1000/87000000/87545000/menu_attr_pair_PackageQuantity_1_1_ce8df24769.html"}],"name_url":"/python/html6/menu_attr_pair/1000/87000000/87545000/menu_attr_pair_PackageQuantity_1_1_ce8df24769.html"}],"images":[],"distributors":[{"name":"Zoro","sku":"G4159569","url":"https://www.zoro.com/unitherm-12-x-42-l-fiberglass-insulated-pipe-jacket-3-wall-iw4218/i/G4159569/","pricing":[{"quantity":1,"price_usd":347.99}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://www.zoro.com/static/cms/product/full/Z1wOKtocpEx_.JPG"}],"amazon":{"available":false,"products":[]},"metadata":{"generated_date":"2026-09-17","last_updated":"2026-09-17","data_sources":["Zoro"],"completeness":0.75,"version":"1.2"}}},"pagination":null,"nav":{"home":"/python/html6/index.html","brands":"/python/html6/menu_brand_index/menu_brand_index_brands_87101ba214.html","parts":"/python/html6/menu_part_index/menu_part_index_parts_909e6bf0ca.html","attributes":"/python/html6/menu_attr_index/menu_attr_index_attributes_d7f67a250d.html"}}