PureT (AD-4PP-3W) Plastic feed water adapter, 1/2"F NPT X 1/2" M NPTX1/4"NPT
This item is not currently in stock. It is on order and we expect it in our warehouse on or around October 11, 2026. Ordering now reserves a unit from that incoming shipment — we ship within one to two business days of it arriving.
To cancel for a full refund, email support@isopurewater.com or call 714-541-6600 any time before the item ships. Credit card refunds are issued within one billing cycle. If we learn we can’t ship by the date above, we’ll email you a revised shipping date and the option to cancel.
Three-Port Feed Water Adapter
The PureT AD-4PP-3W is a three-port slip-joint feed water adapter designed to tap into existing cold water supply lines for reverse osmosis systems, undercounter filters, and other point-of-use equipment. Built from nylon plastic with superior tensile strength and crack resistance, this adapter provides a reliable, lead-free connection point between your water source and filtration system.
Technical Details
| Model Number | AD-4PP-3W |
| Inlet Connection | 1/2" Female NPT |
| Outlet Connection | 1/2" Male NPT |
| Feed Water Port | 1/4" NPT Quick Connect |
| Material | Nylon Plastic |
| Construction Type | Slip-Joint |
| Lead-Free Certified | Yes |
Applications
The AD-4PP-3W adapter works with reverse osmosis systems, undercounter water filters, refrigerators, icemakers, office coffee service equipment, and other point-of-use appliances requiring a 1/4-inch quick connect feed. Install inline on cold water supply lines using standard 1/2-inch NPT threaded connections. The center port accommodates tubing and quick connect fittings rated for potable water use. Compatible with all PureT and standard 1/4-inch OD tubing systems.
