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Senju Open End Wrench | FR Heads

Senju Open End Wrench for FR Heads expedites installation and removal of model FR fire sprinklers.
  • Buy 5 for $42.27 each and save 8%
  • Buy 25 for $39.06 each and save 15%
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SKUMaterialSprinkler ModelsSenju Part Number
SJFRSWRChrome-Plated SteelFR90000-003-0510
Usually ships within 48 hours

Product Description

Senju's open-end wrench is designed to speed installation or removal of Senju model FR fire sprinklers. This unique wrench is designed specifically for Senju fire sprinkler frames and provides the flexibility to engage the fire sprinkler from various angles.

Fire Sprinkler Wrench Helpful Tips:

Tip 1: It is recommended that a qualified professional replace fire sprinklers or in any other way modify a fire sprinkler system.

Tip 2: A fire sprinkler's size describes the inner orifice diameter - either half (1/2") or three-quarter (3/4") inch. The outer diamter of a (1/2") sprinkler's threads measures close to three-quarter inch. The other diameter of a (3/4") sprinkler's threads measures close to one inch. Most offices, small retail locations, etc. have (1/2") sprinklers. This applies to ordering wrenches - make sure to get the wrench that fits your size sprinkler.

Tip 3: Spare fire sprinkler heads and a wrench should be accessible at all times in a facility with a commercial fire sprinkler system installed. Often state regulations apply, too. Check with your local fire department.

Tip 4: Fire sprinkler systems should be visually inspected often and professionally inspected annually.

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