Plenum-rated Variable Closure Strut Clamp

257-S

This variable-size strut clamp is ideal for securing copper, PEX, CPVC and gas tubing directly to a strut/channel when code requires a plenum rating. Quick to install, the clamp doesn’t require tools and eliminates need for over 20 strut clamp SKUs.

Features and benefits:
  • Provides dissimilar metal isolation
  • Meets ASTM E84 25/50 and UL 94 V-0 ratings
     
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SKU Pipe Size Description Dimensions
257-S 3/8–1 in. CTS 

25 lbs. suspended, 200 lbs. top mount

 2-1/2 in. x 2-7/8 in.
287-S 1–2 in. CTS

75 lbs. suspended, 300 lbs. top mount

 3-½ in. x 4-7/8 in.
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Versatile

Compatible with multiple pipe types.

Approved

Meets codes & standards requirements for plenum rating.

Quick

No tools required for installation.