From the product description, check product page for current description, price and availability:
- This plastic quick disconnect set features 1/4″ barb.
- Shutoffs(check valve) prevent leakage when disconnected.Use these high quality, food-grade quick-disconnects on your gas and beer tubing lines.
- These couplings make it very easy to swap out couplers and other beer and air side accessories.
- Made of Food-grade plastic with stainless steel springs and NSF approved.
- The temperature range is -40F to 180F.They can handle a vacuum to 80 psi – so you need not worry about them leaking gas.
These are valved disconnects. When they are disengaged a shut off mechanism stops the flow of gas or liquid.
LucaSng Plastic Hose Quick Connector with Shut-Off,Gas and Liquid Quick Connector Check Valve Beer Line Tubing Quick Disconnect (1/4” Barb) – note that multiple variations of this product may be available, as such a different version may appear at this link
Compare: Beer & Gas Quick Connect – In-Line Set (With Shut-Off) H550 – similar concept, but not identical