Upgrade your Pentair SM/SMBW 2000 & 4000 series DE filter clamp knob with the Swimables SW‑26‑033. Durable, ergonomic replacement ensures secure lid sealing and simplifies filter servicing.

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Key Features

• Pentair OEM Fit – Designed as a direct replacement for the Pentair SMBW SM/SMBW 2000 & 4000 series clamping band knob used on filters manufactured before and after 1998 

• Robust Plastic Construction – Made from high-strength plastic, this knob resists cracking and delivers long-lasting performance in pool environments 

• Ergonomic Grip Design – Provides easy hand tightening and loosening of filter bands without tools—simplifies filter maintenance 

• Precise Replacement Part – Matches Pentair part 076033 (also referenced as V20‑221 in some catalogs) for seamless installation 

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Product Overview

The Swimables SW‑26‑033 Clamp Knob replaces the Pentair original band knob found on SM and SMBW 2000/4000 Series DE filters (both pre‑1998 and post‑1998 models). Manufactured from durable plastic, it’s built to withstand repeated use and resist degradation from UV exposure and pool chemicals 

The ergonomic design ensures a secure grip—allowing users to easily tighten or loosen the clamp band by hand without tools. This simplifies routine filter maintenance such as lid removal or grid replacement 

Measuring approximately 3″ in length and 1.5″ in height and width, the SW‑26‑033 aligns perfectly with Pentair part 076033 (V20‑221) sizing 

Ideal for owners of Pentair Nautilus Plus and Purex SM/SMBW filter systems, this knob restores full clamping performance, ensuring a reliable seal and safer, simpler servicing