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Water Fitting, Plastic, quick connect elbow. (Compatible with WF053 and WF056 fittings with the plastic locking clip)
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Quick Couplings for Plastic Tubing
Watts Quick Connect 1/4 in. Plastic O.D. x O.D. Coupling PL-3000 - The Home Depot
Plastic Quick Connect Coupling – MilbyCompany
Plastic quick release couplings - CPC - Tubes International
POM Full Plastic Quick-Disconnect Coupling, NW 6.4 mm | Reichelt Chemietechnik
Source 6/8/10/12/mm T-piece Plastic Quick Coupling Tee Type air hose fitting types on m.alibaba.com