Caleffi 6687F5S1A TwistFlow® Radiant Distribution Manifold, 6-Loop, 1-1/4

Description

The Caleffi 6687F5S1A is a TwistFlow pre-assembled radiant distribution manifold with 6 loops and a 1-1/4 in trunk, distributing and balancing heating fluid to each circuit of a radiant floor or panel system with built-in per-loop flow gauges.

Product data compiled from Caleffi North America technical documentation. Last reviewed July 2026.

FunctionRadiant Manifold