Check the listing for details. FF-2 Full Function Trailer Valve Reservoir port 3/4" Ref: 28600, 170.KN28600. Condition: New. Listed at 54.00 USD. H-30285 Brand New Full Function Trailer Air Brake Valve FF-2 / Replaces 28600 from or warehouse in NJ. Sold to major distributors and used confidently without problems. We are a heavy-duty truck & trailer brake parts importer manufacturer warehouse in Linden, NJ. With the experience and knowledge of 18 years in the industry. We sell to OEM and aftermarket. FF2 Full Function Trailer Brake Valve - 3/4" Reservoir Single valve system.Built-in pressure protection and anti-compounding functions.FMVSS-121 compliant.Built-in service and spring brake quick release.Wall mounting nipple resists corrosion and withstand severe duty applications.Service brake priority ensures air tank sufficient pressure.Can be used with single or twin air tanks.Approximate Weight: 3 lbs.OEM Part # KN28600 Technical Specifications: Crack Pressure. 3.0 PSIReservoir: 3/4"Control: 1/4"Supply: 3/8"Spring Brake: 2 @ 3/8"Delivery (4): 3/8" Comes with Blue Safety Caps to Protect the Threads and Mechanism prior Installation.No Core Charge.