RO Water Filter Push-to-Connect Tee Fittings
$8.98 on Amazon.com (as of October 16, 2026, 3:54 AM EST) View details ↗
Upgrade your reverse osmosis (RO) system with these YIYONGSPINS 3/8″×1/4″ reducing tee fittings, designed for seamless push-to-connect installation. These high-performance tees feature dual flow configurations—5 units of 3/8″→1/4″/3/8″ and 5 units of 1/4″→3/8″/3/8″—making them ideal for complex RO plumbing setups, including under-sink filters, commercial dispensers, and lab systems. The robust design ensures a tight, leak-free seal after rigorous testing, with over 10,000 insertion/extraction cycles guaranteeing durability and reliability.
No tools or glue required—simply push the fittings into place for a quick, hassle-free connection. Compatible with John Guest-style push-to-connect systems, these tees are a universal solution for reducing pipe diameters in water filtration applications. Whether you're assembling a custom RO setup or maintaining existing plumbing, these fittings deliver precision and performance without compromise.
| Dimensions (3/8″→1/4″/3/8″ tees) | 9.5mm × 9.5mm × 6.5mm (3/8″ × 3/8″ × 1/4″) |
|---|---|
| Dimensions (1/4″→3/8″/3/8″ tees) | 9.5mm × 6.5mm × 6.5mm (3/8″ × 1/4″ × 1/4″) |
| Leakage Tested | 10,000+ insertion/extraction cycles |
| Compatibility | John Guest-style push-to-connect systems, RO filters, under-sink dispensers, lab |
| Material | High-performance push-to-connect plastic (exact type not specified) |
| Quantity Included | 10 total (5× 3/8″→1/4″/3/8″ + 5× 1/4″→3/8″/3/8″) |
