Accessory Valves & Devices Fittings & Tubing (Series QR1) - Inch & Metric (BSPP) The Rexroth Series QR1 fittings are for inch tubing/NPT threads and metric tubing/IS0-G(BSPP)threads. The user-friendly oval release ring allow the push-in fittings to quickly release from the tubing—much easier than traditional round release rings. QR1 fittings come in standard and mini sizes, plus function fittings such as ball valves, check valves, flow controls, etc. They feature premium materials such as the stainless steel tube locking mechanism and the polymer body and release ring. Lengthy features list: Oval release ring for easy removal of tubing Light weight, space-saving, polymer design, inherent corrosion resistance Stainless steel tube locking mechanism Thread sealant on NPT threads, face seal on ISO-G threads Optimum sealing with captive o-ring Standard series for 10-32UNF to 1/2” NPT (M5 to G1/2) and 5/32” to 1/2” tubing (4 to 16mm) Mini series for 10-32UNF to 1/8” NPT (M3 to G1/8) and (3 to 6mm) - great for use with Rexroth small handling components Function fittings for 1/8” to 1/2” NPT (G1/8 to G1/2) and 5/32” to 1/2” tubing (3mm to 12mm) Inch and metric tubing offering Choose from straights, elbows, tees, Y’s, X’s, manifolds, bulkheads, plugs, reducers, unions, caps, etc. Request additional free information: Download SC-400.10, the Fittings - Series QR1 catalog Order your free Series QR1 catalog and Master Industrial Pneumatics CD Poster (Choose Inch or Metric) By Mail New! Series QR1 available on GoTo Quick Ship Delivery Program