The Caleffi F69600 is a replacement sight flow meter (1/4 - 2 gpm) for Caleffi 668S1-series TwistFlow supply manifolds, restoring per-loop flow indication and balancing. It also serves 172-series manifold mixing stations, which are built on the same 668S1 manifold.
Product data compiled from Caleffi North America technical documentation (01170 NA, 68367, NA11012, SS-103 NA) and the Caleffi North America product catalogue. Last reviewed August 2026.
Key Features
Sight Flow Meter, 1/4 - 2 gpm
Replacement PSU sight-gauge flow meter reading 1/4 - 2 gpm for direct visual loop balancing.
Per-Loop Balancing Restored
Renews flow indication on a TwistFlow supply-manifold outlet after wear or damage.
Tool-Simple Swap
Replaces the existing meter body on the manifold outlet without removing the manifold.
Technical Data
| Function | Replacement balance/flow meter - 668S1 supply manifold and 172-series mixing stations |
|---|---|
| Flow meter scale | 1/4 - 2 gpm |
| Body | PSU sight gauge |
| Maximum operating pressure (meter) | 87 psi (6 bar) |
| Medium temperature range (meter) | 41 - 176 F (5 - 80 C) |
Related Products
Frequently Asked Questions
Caleffi 668S1-series TwistFlow supply manifolds, and 172-series manifold mixing stations, which use the same 668S1 manifold. For the return-manifold shut-off valve, order F69590 instead.
1/4 - 2 gpm, on a visible PSU sight gauge used for loop balancing.
No. The meter body replaces on the outlet with the manifold in place.
- Type:
- Accessory
