# Ralston Instruments QTHA-4TB0 1/2" tube fitting x male QT, no check-valve, brass from Cole-Parmer

**Manufacturer:** Ralston Instruments  
**MPN:** `QTHA-4TB0`

The Ralston QTHA-4TB0 1/2" Tube Fitting x Male Quick-test Adapter provides a gas-tight, wrench-free connection to any type of tube fitting, including Parker, Swagelok, Tylok, and SSP. Its seal uses an integrated O-ring that doesn't require additional tightening. An integrated locking mechanism ensures maximum grip with minimal deformation of the tube adapter. This adapter is suitable for various applications in industries such as Oil & Gas, Research, Petrochemical, and Semiconductor Industries.

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Ralston Instruments |
| Manufacturer name | Ralston Instruments |
| Manufacturer | Ralston Instruments, Ralston |
| CategoryL1 | Calibration |
| CategoryL2 | Calibration Accessories |
| CategoryL3 | Ralston Instruments Hose and Adapter Kits |
| Extra Product Name | Ralston Instruments QTHA-4TB0 1/2" tube fitting x male QT, no check-valve, brass from Cole-Parmer |
| extendedLead | 29 |
| extendedQty | -2 |
| moq | 1 |
| MPN | QTHA-4TB0 |
| multiple | 1 |
| qtyInStock | Usually Ships in 24 Days |
| SKU | 6897682 |
| tierMinQty1 | 1 |
| tierPrice1 | 33.55 |
| Part Number | QTHA-4TB0 |
| Product Group | BISS |
| ASIN | B01DCMO00S |
| AdultProduct | False |
| Asin | B01DCMO00S |
| Autographed | False |
| Batteries_required | False |
| Brand | RALSTON, Ralston Instruments |
| Bullet_point | Easy to connect, tighten and disconnect without a wrench, Integrated locking mechanism ensures maximum grip with minimal deformation of tube adapter, Provides gas-tight connection to any type of tube  |
| Case | 1 |
| Cat | Tools & Home Improvement |
| CatId | 228013 |
| CatTree | 228013, 468240, 495266, 6396121011, 6396123011 |
| ClassificationId | 383603011 |
| Color | Brass |
| Connector_type | Adapter |
| DisplayName | Threaded Tube Fittings |
| Exterior_finish | Brass |
| Feature | Make a bubble-tight connection to any Swagelok, Parker, Hoke, Gyrolok or equivalent fractional tube fitting by hand |
| Height | 500, 75 |
| IsBrandQuery | True |
| ItemClassification | BASE_PRODUCT |
| ItemName | Ralston QTHA-4TB0 1/2" Tube Fitting x Male Quick-Test Adapter, Brass |
| Item_name | Ralston QTHA-4TB0 1/2" Tube Fitting x Male Quick-Test Adapter, Brass |
| Item_shape | adapter |
| Item_type_keyword | threaded-tube-fittings |
| Item_weight | 0.01 |
| Keyword | QTHA-4TB0 |
| Label | Ralston, Ralston Instruments |
| Link | https://m.media-amazon.com/images/I/41U9Iiq6yEL._SL75_.jpg, https://m.media-amazon.com/images/I/41U9Iiq6yEL.jpg, https://www.amazon.com/gp/bestsellers/industrial, https://www.amazon.com/gp/bestsellers |
| Man | Ralston |
| Material | Brass |
| MaterialType | Brass |
| Memorabilia | False |
| Mpns | QTHA-4TB0 |
| NumberOfItems | 1 |
| PartNumber | QTHA-4TB0 |
| Part_number | QTHA-4TB0 |
| ProductCategoryId | 383612011, biss_display_on_website |
| ProductGroup | BISS, BISS Basic, Home Improvement |
| ProductType | HOSE_PIPE_FITTING |
| ProductTypeName | HOSE_PIPE_FITTING, PRECISION_MEASURING |
| Product_description | The Ralston QTHA-4TB0 1/2" Tube Fitting x Male Quick-test Adapter provides a gas-tight, wrench-free connection to any type of tube fitting, including Parker, Swagelok, Tylok, and SSP. Its leak-free se |
| Product_site_launch_date | 2016-03-23T20:57:33.999Z |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Cole-Parmer | 6897682 | 33.55 | 1 | None | 1 |
| Transcat | QTHA-4TB0 |  |  | None | 1 |
| globaltestsupply.com | QTHA-4TB0 | 30.32 | 1 | 26 | 1 |
| ebay.com | QTHA-4TB0 |  |  | None | 1 |

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