John Guest brass fittings for beverage dispense applications. Designed for coffee brewing equipment, dispensing, and vending machine applications. The fittings are manufactured in brass with a polypropylene collet and a food-grade EPDM O-Ring.

• LF – Lead-Free (USA)
• Push-fit technology
• Quick disconnection without the need for tools
• Manufactured in brass with a polypropylene collet
• Food grade EPDM ‘O’ ring
• For coffee, brewing, and vending machine applications
• Size: MI4508F4S: 1/4 x 1/4
• Part No. MI4508F4SLF, Alt. Part Number: MI4508F4S

Working pressures and temperatures:

• 150 psi at 70° F
• 60 psi at 140° F
• 1/4 (FFL) corresponds to a 7/16 UNF

John Guest Products

Intelligent plastic push-to-connect technologies for specialist industries.

With 60 years of engineering driven by a spirit of innovation and a focus on quality and technology, John Guest has become the world’s leader in plastic push-fit fittings, tubing, and other fluid control products. The trusted choice for OEMs around the globe, John Guest serves a diverse range of markets and applications, from water filtration and beverage dispensing to car wash systems and agriculture. So whether you’re working in beverage dispensing, water quality, or air and pneumatics, John Guest Solutions gives you the versatility and reliability to produce strong results.