Hayward Standpipe and Underdrain Assembly | VLX4001A Uxmal Durable molded construction for long-term

Durable molded construction for long-term water exposure

Don't let a faulty circuit board affect your comfort—experience uninterrupted relaxation with this reliable

Protect your family and preserve your pool with the GLI 20-1638RE-SAP-GRN Green Mesh Pool Safety Cover

This premium torch and post provide a perfect blend of ambiance and functionality for any backyard setting

Hayward Standpipe and Underdrain Assembly | VLX4001A Uxmal Durable molded construction for long-termWhat This Part Is Used For The Hayward VLX4001A is a standpipe and underdrain assembly used inside compatible Hayward VL Series sand filters. It manages internal water distribution through the sand bed and supports proper filtration and backwashing. This assembly lives inside the filter tank under the multiport valve connection. Why This Part Matters If the internal underdrain components are cracked or out of position, the filter can bypass sand and