Product Overview

The Pentair 190030Z Cap Plug is a genuine replacement drain cap plug designed for select Pentair pool and spa filters, including FNS Plus, Clean & Clear Plus, and Quad D.E. filter models. This 1-1/2" drain plug cap assembly helps seal the filter drain outlet, preventing leaks during normal operation and allowing convenient access during filter draining, maintenance, or winterization.

Built as an OEM replacement part, the Pentair 190030Z is ideal for replacing a cracked, stripped, leaking, or missing drain cap plug on compatible Pentair filter systems.

Ideal For

Pool owners and service professionals replacing the drain cap plug on compatible Pentair FNS Plus, Clean & Clear Plus, or Quad D.E. filters.

This part is especially useful when the existing drain cap is damaged, difficult to tighten, leaking, or no longer sealing properly.

Key Features

Genuine Pentair OEM Replacement

Manufactured as an original Pentair replacement part for proper fit and reliable performance with compatible Pentair filter systems.

Designed for FNS Plus Filters

Commonly used with Pentair FNS Plus D.E. filter models, including FNSP24, FNSP36, FNSP48, and FNSP60.

Also Fits Clean & Clear Plus and Quad D.E. Filters

Compatible with select Pentair Clean & Clear Plus cartridge filters and Quad D.E. filters that use the same drain cap plug style.

1-1/2" Drain Cap Plug

Designed as a 1-1/2" threaded drain cap plug for compatible filter drain outlets.

Helps Prevent Filter Drain Leaks

Creates a secure seal at the filter drain port when installed with the proper gasket or O-ring.

Useful for Maintenance and Winterization

Allows the filter to be drained when needed for service, cleaning, storage, or winter preparation.

Benefits

Replacing a worn or damaged drain cap plug can help prevent unwanted water leaks from the filter drain outlet and restore a secure seal during normal filter operation. The Pentair 190030Z is a direct replacement for compatible Pentair filters, making it a practical part to keep on hand for routine filter service and repairs.

For best results, inspect the gasket or O-ring during replacement and replace it if worn, flattened, cracked, or missing.

Specifications

Customer-Facing Q&A

Q: What is the Pentair 190030Z used for?
A: It is a replacement drain cap plug used to seal the drain outlet on compatible Pentair pool and spa filters.

Q: Does this fit Pentair FNS Plus filters?
A: Yes, it is commonly listed for Pentair FNS Plus models FNSP24, FNSP36, FNSP48, and FNSP60.

Q: Does this fit other Pentair filters?
A: Yes, it is also commonly listed for compatible Clean & Clear Plus cartridge filters and Quad D.E. filters.

Q: Is this a genuine Pentair part?
A: Yes, Pentair 190030Z is a genuine Pentair replacement part.

Q: Is the O-ring or gasket included?
A: Listings may vary. This part is commonly referenced for use with gasket 86300500 or O-ring O-71 #325. Always confirm whether the gasket or O-ring is included before purchase.

Q: When should this cap plug be replaced?
A: Replace it if the cap is cracked, leaking, stripped, difficult to tighten, missing, or no longer sealing properly.

Q: Should the pump be off before removing this plug?
A: Yes. Always turn off the pump, relieve filter pressure, and follow the filter manufacturer’s service instructions before removing any drain plug or filter component.