[{"id":475389001976,"handle":"plumbing-fittings","updated_at":"2026-05-27T16:17:35-04:00","published_at":"2026-03-12T15:51:33-04:00","sort_order":"best-selling","template_suffix":"","published_scope":"global","title":"Fittings \u0026 Connections","body_html":"\u003cp data-start=\"354\" data-end=\"380\"\u003e\u003cstrong data-start=\"354\" data-end=\"380\"\u003eFittings \u0026amp; Connections\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"382\" data-end=\"708\"\u003eBrowse our full selection of high-quality fittings and connection components designed for fast, secure, and reliable installations. This collection includes push-to-connect fittings, threaded adapters, valves, and transition fittings compatible with common tubing and piping sizes used in water treatment and plumbing systems.\u003c\/p\u003e\n\u003cp data-start=\"710\" data-end=\"898\"\u003eBuilt for performance and ease of use, these products help streamline installs, reduce leak points, and ensure long-term durability in residential, commercial, and industrial applications.\u003c\/p\u003e","image":{"created_at":"2026-03-12T15:51:32-04:00","alt":null,"width":1536,"height":1024,"src":"\/\/322water.com\/cdn\/shop\/collections\/Plumbing_Fittings.png?v=1773345093"}},{"id":475879342328,"handle":"push-to-connect-fittings","updated_at":"2026-05-27T16:17:35-04:00","published_at":"2026-03-20T14:03:30-04:00","sort_order":"best-selling","template_suffix":"","published_scope":"global","title":"Push To Connect Fittings","body_html":"\u003cp data-start=\"241\" data-end=\"269\"\u003e\u003cstrong data-start=\"241\" data-end=\"269\"\u003ePush-to-Connect Fittings\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"271\" data-end=\"520\"\u003eBrowse our selection of push-to-connect fittings designed for fast, secure, and tool-free connections in water treatment and plumbing systems. These fittings allow for quick installation and removal while maintaining a reliable, leak-resistant seal.\u003c\/p\u003e\n\u003cp data-start=\"522\" data-end=\"714\"\u003eCompatible with a wide range of tubing materials and sizes, push-to-connect fittings are ideal for residential, commercial, and industrial applications where efficiency and performance matter.\u003c\/p\u003e","image":{"created_at":"2026-03-20T14:03:28-04:00","alt":null,"width":1536,"height":1024,"src":"\/\/322water.com\/cdn\/shop\/collections\/9ed074b3-6a56-49c0-a55f-c7c74c8fa05a.png?v=1774029810"}}]
["1\/4 push connect","1\/4 push fit adapter","1\/4 quick connect","1\/4 ro fitting","1\/4 tube fitting","1\/4 tube to 1\/4 mnpt","1\/4 tubing connector","1\/4 water line fitting","beverage tubing fitting","drinking water fitting","filtration fitting","food grade water fitting","icemaker fitting","inline water fitting","john guest style fitting","male npt adapter","mnpt adapter","nsf water fitting","od tubing fitting","plastic push fitting","plumbing quick connect","polyethylene tubing fitting","push connect fitting","push fit fitting","push fitting","push to connect","qc fitting","quick connect","quick connect fitting","refrigerator water line fitting","reverse osmosis fitting","ro fitting","tube adapter","tube fitting","tube to male npt","tube to npt adapter","tubing connector","water filter fitting","water line fitting","water system fitting"]
The 322 Water3/8" Tube × 1/2" MNPT Push-to-Connect Adapter is a high-performance push-to-connect fitting designed for use in water, beverage, food, and air applications. Its one-touch connection design allows tubing to be quickly inserted and securely sealed without tools, making installation fast and reliable in residential, commercial, and industrial systems.
Construction & Materials
Manufactured from durable white acetal copolymer, the fitting features a food-grade EPDM O-ring and cork-type sealing structure that provides excellent sealing performance and long-term leak resistance. All 322 Water fittings are made from FDA-approved materials suitable for potable water and food contact applications.
Certifications
322 Water products are produced under ISO9001 quality management and ISO14001 environmental management systems. Materials and components meet or are certified to the following standards:
·NSF/ANSI 51
·NSF/ANSI 61
·WRAS
·ICIM
·KTW
Performance Specifications
322 Water push-connect fittings are designed for reliable operation across a wide range of applications.
·Fluid Type: Water, beverages, food liquids, air, and gas
·Working Pressure: 0 – 230 PSI (0 – 16 kgf/cm²)
·Working Temperature: 34 – 140°F (0 – 60°C)
Compatible Tubing
Designed for use with the following tubing materials:
·Polyethylene (PE)
·Polyamide (PA)
·Polyurethane (PU)
322 Water fittings are manufactured in both inch and metric sizes and are widely used in water treatment, beverage dispensing, filtration systems, and pneumatic applications.
