As an Amazon Associate, we earn from qualifying purchases. 1/2" Flow Sensor FS50 - Bulk Reef Supply Neptune Systems . 210687 Gallery Attributes Brand name, Manufacturer name, ManufacturerNeptune Systems Extra Product Name1/2" Flow Sensor FS50 - Bulk Reef Supply extendedQty, qtyInStock0 keywordssaltwater aquarium supplies, reef aquarium supplies, marine fish tank, live rock, GFO, protein skimmers, two part dosing, aquarium carbon, fish food, RO/DI Systems, ecotech marine, aquaillumination, neptune systems, kessil, innovative marine moq, multiple, tierMinQty11 MPN, SKU210687 qtySourceupdateFromUrlEntry snippetKnow Your Flow! Usually used with a return pump, this flow sensor can be placed in line with the flow on any pipe, connected to the FMM, and communicate to your Apex the flow rate of water through that pipe. The FS-50 will work with flow rates from 30-250 gph, and will connect to any standard 1/2 Slip PVC. The flow sensor itself uses British Standard Parallel Pipe (BSPP) threads so two specially designed PVC unions are provided with slip fittings to adapt it to standard 1/2″ PVC plumbing. What's Included? 1x 1/2 Flow Sensor 2x SBPP x 1/2 Slip Unions tierPrice134.99 Distributor offers SellerSKUMOQIn stockMultiplePrices bulkreefsupply.com210687111 @ $34.99