The self-contained heating blanket electrical system uses NEMA 3R rated components

with a black translucent cover and beige back

Handle indicates flow direction

Double break creates a 4" up or down height differential

Laboratory In-Flow Safety Can

Hayward Check Valve, 2 1/2 in, Single, Y, CPVC, FNPT x FNPT - YC20250TE Height-30.5" The self-contained heating blanket electricalItem Check Valves: Check Valve; Flow Design: Single; Mechanism and Body Design: Y; Body Material Valves: CPVC; Pipe or Tube Size Check Valves: 2 1 2 in; Connection Type Check Valves: FNPT x FNPT; Cracking Pressure Check Valves: 1 psi; Mounting Orientation Check Valves: Horizontal, Vertical; Seal Material Check Valves: EPDM; Max. Temp. Valves: 190 Degrees F; Min. Temp. Valves: 40 Degrees F; Max. Water Pressure Valves: 150 psi @ 70 Degrees F; Max. Steam