{"product_id":"john-guest-lead-free-brass-connector-3-8-tube-od-x-1-4-ffl","title":"John Guest 3\/8\" Tube OD x 1\/4\" FFL Brass Connector | Lead-Free Flare Fitting for Beverage \u0026 Water","description":"\u003cp\u003eThe \u003cstrong\u003eJohn Guest MI4512F4SLF Brass Connector\u003c\/strong\u003e is a high-performance, lead-free fitting designed to bridge \u003cstrong\u003e3\/8\" OD plastic tubing\u003c\/strong\u003e and standard \u003cstrong\u003e1\/4\" MFL (Male Flare)\u003c\/strong\u003e ports. Commonly found on CO2 regulators, gas manifolds, and keg couplers, this connector allows for a rapid, tool-free connection while maintaining the robust integrity of a brass flare seat. The lead-free brass construction ensures compliance with safe drinking water standards, making it ideal for both brewing and soda applications.\u003c\/p\u003e\n\n\u003cp\u003eFeaturing John Guest’s world-renowned \u003cstrong\u003epush-fit technology\u003c\/strong\u003e, this fitting provides a permanent, leak-proof seal that can be disconnected and reused without damaging the tubing. The internal stainless steel collet teeth provide a secure grip, while the high-quality EPDM O-ring ensures an airtight seal. This specific fitting is essential for technicians and homebrewers who want to upgrade their gas or liquid lines to a modular, easily maintainable system.\u003c\/p\u003e\n\u003cdiv style=\"background-color: #f0f7ff; border: 1px solid #0056b3; padding: 15px; margin: 20px 0;\"\u003e\n\u003cstrong\u003ePro-Installer Tip:\u003c\/strong\u003e\nWhen connecting this to a plastic MFL port (like on some ball lock disconnects), be careful not to over-tighten, as the brass threads can strip the plastic. For a 100% gas-tight seal on the flare side, we recommend using a \u003cstrong\u003e1\/4\" Nylon Flare Washer\u003c\/strong\u003e between the metal flare seat and the mating port. Always use a \u003cstrong\u003elocking clip\u003c\/strong\u003e on the push-fit side to prevent accidental tube release in high-vibration areas.\n\u003c\/div\u003e","brand":"John Guest","offers":[{"title":"Default Title","offer_id":51245312966872,"sku":"MI4512F4SLF","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/8725\/6536\/files\/1739882629_MI4508F4S-LF_1.jpg?v=1767295326","url":"https:\/\/www.howdybrewer.com\/products\/john-guest-lead-free-brass-connector-3-8-tube-od-x-1-4-ffl","provider":"HowdyBrewer","version":"1.0","type":"link"}