Specifications

Residential Expansion Tank Kits
70-6910 263
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Boiler Trim Kit with Air Purger
Honeywell TK Series Boiler Trim kits are a quick and convenient
way to purchase the key "boiler trim" used by installers when
performing a boiler change out. All Trim Kits with Purgers include
expansion tank, air purger and air vent; selected models also
include FM911 combination boiler fill valve/backflow preventer
and/or service check valves for in-line servicing of the expansion
tank and air vent.
Maximum Operating Temperature: 240 F (115 C)
Maximum Operating Pressure: 100 psi (689 kPA)
Diameter: 11 in. (279 mm)
Maximum Acceptance Volume: 2.5 gal. (9.5 L)
Product Number
Connection Size
(inch) Connection Type
Height Volume Weight
Includes(inch) (mm) (gal) (L) (lb) (kg)
TK300-30A-1 Air Purger: 1 in.
Tank: 1/2 in.
Tank: Male NPT
Air Purger: Female NPT
15 1/2 in. 394 mm 4.4 gal 16.7 L 13 lb 5.9 kg TK300-30, AP400, FV180,
SCV-0125, SCV-050
TK300-30A-1FM Air Purger: 1 in.
Tank: 1/2 in.
Tank: Male NPT
Air Purger: Female NPT
15 1/2 in. 394 mm 4.4 gal 16.7 L 16.6 lb 7.5 kg TK300-30, AP400, FV180,
SCV-0125, SCV-050,
FM911
TK300-30A-1FMNC Air Purger: 1 in.
Tank: 1/2 in.
Tank: Male NPT
Air Purger: Female NPT
15 1/2 in. 394 mm 4.4 gal 16.7 L 16.6 lb 7.5 kg TK300-30, AP400, FV180,
FM911
TK300-30A-2 Air Purger: 1 1/4 in.
Tank: 1/2 in.
Tank: Male NPT
Air Purger: Female NPT
15 1/2 in. 394 mm 4.4 gal 16.7 L 13 lb 5.9 kg TK300-30, AP401, FV180,
SCV-0125, SCV-050
TK300-30A-2FM Air Purger: 1 1/4 in.
Tank: 1/2 in.
Tank: Male NPT
Air Purger: Female NPT
15 1/2 in. 394 mm 4.4 gal 16.7 L 16.6 lb 7.5 kg TK300-30, AP401, FV180,
SCV-0125, SCV-050,
FM911
TK300-30A-2FMNC Air Purger: 1 1/4 in.
Tank: 1/2 in.
Tank: Male NPT
Air Purger: Female NPT
15 1/2 in. 394 mm 4.4 gal 16.7 L 16.6 lb 7.5 kg TK300-30, AP401, FV180,
FM911