The mechanical parts that complete a fixed suppression system beyond the cylinder, valve and nozzle: manifolds that combine multiple cylinders into one discharge path, actuator assemblies that convert the release signal into mechanical action, pressure switches that confirm discharge back to the panel, and the associated fittings.
Every one of these is matched to the system design. Pressure switches in particular are the panel's proof that discharge actually occurred, so a substitution changes what the system reports. Order from the system drawings.

Kidde Fenwal
Kidde Fenwal 81-897600-001 CO2 Odorizer, 3/4" Stainless Steel Assembly (factory Filled with Oil of Wintergreen)
Sale price$1,674.45
Regular price$2,009.34
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal WK-840253-002 5/8" I-Valve - TPED Approved
Sale price$1,443.75
Regular price$1,732.50
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal WK-872450-000 Discharge Head, Plain Nut (for ADS and CO2)
Sale price$581.95
Regular price$698.34
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal WK-281705-000 Operating Instructions Plate, with Stop Valve
Sale price$146.75
Regular price$176.10
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal WK-528103-700 Tee, 3/16 Without Nuts (Marine)
Sale price$20.55
Regular price$24.66
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal WK-840253-000 HPCO2 Type I 5/8" Valve
Sale price$1,117.15
Regular price$1,340.58
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal WK-981372-000 HPCO2 Type I 1/2" Valve
Sale price$1,117.15
Regular price$1,340.58
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal WK-152348-000 Nut-Hex, 3/4, for 2-1/2 & 3 CL600 Flanges
Sale price$24.15
Regular price$28.98
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal WK-932636-000 Main Check, 1/2" "I" Valve
Sale price$206.45
Regular price$247.74
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal WK-878728-000 Anti-Recoil Safety Cap, 2-1/2 Valve Outlet
Sale price$615.75
Regular price$738.90
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal WK-878725-000 Anti-Recoil Safety Cap, 2 ECS, ADS Valve Outlet
Sale price$480.15
Regular price$576.18
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal WK-528103-600 Union, 3/16 Without Nuts (Marine)
Sale price$20.55
Regular price$24.66
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal WK-202490-000 Valve Seat
Sale price$206.45
Regular price$247.74
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal WK-800760-000 Main Check, 5/8" "I" Valve
Sale price$206.45
Regular price$247.74
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal WK-870652-000 Lever Operated Control Head
Sale price$312.20
Regular price$374.64
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 85-220032-001 3 Way Directional Valve, 3 GVD, Carbon Steel, UL Listed for ECS 500 ADS Fluoro K, ECS 360 3M NOVEC 1230, ECS 500 3M NOVEC
Sale price$39,526.80
Regular price$47,432.16
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal WF-230640-000 Spring, Pilot Check
Sale price$25.70
Regular price$30.84
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal WK-281704-000 Operating Instructions Plate, Without Stop Valve
Sale price$146.75
Regular price$176.10
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 90-300007-001 Valve Marine, Cross-over 3-way, 3" Size
Sale price$30,232.80
Regular price$36,279.36
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal WK-699205-050 Male Branch Tee, 5/16 Flare X 1/8 NPT
Sale price$81.35
Regular price$97.62
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal WK-890181-200 Electric Control Head, 24 VDC
Sale price$1,368.70
Regular price$1,642.44
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal WK-263304-000 Schrader Valve Cap, ADS & WHDR-OL
Sale price$21.40
Regular price$25.68
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 90-160100-000 2 1/2" Valve Maintenance Kit (for Old Style ECS 90 100600 001 90 100601 001) Includes 1 Each of the Following: WK 264929
Sale price$238.00
Regular price$285.60
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal WK-844579-000 Anti-Recoil Safety Cap, 1-1/2 ECS, FE13 Valve Outlet
Sale price$242.25
Regular price$290.70
Not in stock - available on backorder - lead time on request