UNICEL POSI-FLO CARTRIDGE 137 SQ FT - UHD-SR137

SKU: UHD-SR137
Regular price $101.28

Available for pickup at

  • MT Pool Distributor Corporate (3) in stock
  • MT Pool Distributor North (8) in stock
In stock

The Unicel UHD-SR137 137 square foot filter cartridge delivers the professional-grade filtration performance pool contractors need for Sta-Rite Posi-Flo II systems. This premium replacement filter captures particles down to 20 microns with 4-ounce Reemay 2040 media, ensuring crystal-clear water quality that keeps your commercial clients satisfied.

Commercial Application Benefits

Designed for high-volume commercial applications, this filter extends time between cleanings, reducing maintenance costs and service calls. The 216-pleat design with sharp, uniform folds maximizes water flow while minimizing pressure loss, keeping energy costs low for your commercial accounts. Pleat bands maintain optimal spacing and reduce flutter for consistent performance.

Why Pool Contractors Choose MT Pools

With our superior customer service and daily recurring customer support, you get reliable inventory and expert technical guidance. Our wholesale pricing structure supports your profit margins while ensuring you have the quality filters your commercial projects demand.

Frequently Asked Questions

Which Sta-Rite systems is the UHD-SR137 compatible with?

The UHD-SR137 fits Sta-Rite Posi-Flo II PTM135, 135GPM-TX, 135TX, 135TXR systems, and replaces WC108-70S2X. It also cross-references with Filbur FC-2570, FC-2571, and Pleatco PSR137-4.

What filtration level does this cartridge provide?

The UHD-SR137 captures debris and particles down to 20 microns using premium 4-ounce Reemay 2040 polyester media for superior water clarity in commercial applications.

How does the pleat design benefit commercial installations?

The 216 sharp, uniform pleats maximize water flow and debris capture while minimizing pressure loss. Pleat bands maintain spacing and reduce flutter for optimal efficiency and longer service intervals.

Does MT Pools offer bulk pricing for filter replacements?

Yes, MT Pools provides competitive wholesale pricing for contractors with bulk orders and offers superior customer service with reliable inventory management for your ongoing filter needs.

Order Today

Keep your commercial pool systems running efficiently with genuine Unicel quality. Our team provides expert technical support and fast shipping to keep your projects on schedule.

• 137 square feet of filtration area for high-capacity applications
• 4-ounce Reemay 2040 polyester media captures particles down to 20 microns
• 216 sharp, uniform pleats maximize water flow and debris capture
• Pleat bands maintain spacing and reduce flutter for optimal efficiency
• 8 11/16-inch diameter x 31 1/4-inch length dimensions
• Open end cap design for easy cartridge removal and replacement
• Blue top cap and orange bottom cap for easy identification
• Compatible with Sta-Rite Posi-Flo II PTM135, 135GPM-TX, 135TX, 135TXR
• Replaces Sta-Rite WC108-70S2X filter cartridge
• Cross-references Filbur FC-2570, FC-2571, and Pleatco PSR137-4
• Polypropylene core construction for durability
• Chemical resistant 100% polyester material
• Extends time between cleanings reducing maintenance costs
• OEM quality performance and reliability
• Guaranteed against defects in workmanship and materials