PB57521-UBL-H1-SB45 Pleated Bag Filter

The PB57521-UBL-H1-SB45 is a durable pleated bag filter designed to replace traditional filter bags and cages in dust collectors where improved surface area and easier maintenance are needed. Made with spunbond polyester (SB) media, this filter offers excellent abrasion resistance, moisture resistance, and reusability, making it ideal for dry and fibrous dust applications in industries like agriculture, grain, food, and plastics.

It features a 5.75″ diameter and 21″ length, with 45 pleats providing significantly more surface area than sewn filter bags. The UBL (Urethane Bottom Latch) design allows for easy installation and secure fit in bottom-latching systems, while the H1 light-duty internal cage supports structural integrity for low- to medium-pressure environments.

Key Features:

• Size: 5.75″ Diameter x 21″ Length

• Media: SB – Spunbond Polyester

• Pleat Count: 45

• Filter Area: ~18–20 sq. ft. (estimated)

• Mounting Style: UBL – Urethane Bottom Latch

• Support Core: H1 – Light-duty galvanized core

• Efficiency Rating: ~MERV 10

• Washable: Yes – reusable with proper cleaning

• Max Operating Temp: 200°F (93°C)

• Applications: Agriculture, grain, plastics, food processing, dry dust environments

Cross-Reference Compatibility:

• Drop-in replacement for traditional 5.75″ x 21″ sewn bags and cages

• Compatible with bottom-latching dust collectors from major OEMs

• Suitable for retrofit or performance upgrades in compact filter housings