The Pentair 191321 Pacfab TU44, ST35, & ST40 Full Grid Filter Replacement is a replacement pool filter. This pool filter is designed to be an effective replacement for old and worn out full grid filters. This Pacfab filter is made to be a reliable and durable filter that is designed to hold up under high pressure. The Pacfab 191321 is designed to perform at a high level.

Specifications:

• Brand: Pentair/Pacfab
• Model Number: 191321
• Pack Size: 1

Compatible Filters:

The Pentair 191321 is the correct replacement for the following:

• Pentair Star Polymeric
• Star Pool And Spa D.E. Filter System 191321 St35

Notice: Proposition 65 Warning (California Residents): For more information on Prop65, visit www.p65warnings.ca.gov.