The source lists the lock or brake configuration as Dual Pedal Lock
Pressure Range: 5 to 125 psi/0
Overall Height 6-1/2" Bearing Type Sealed Precision Bearing Plate Size 4" x 4-1/2" Lock Type Dual Pedal Lock Brake Model / MPN DTTP50JY0417YY Tread Type Non-Marking Thermoplastic Rubber Core Type Solid Polyolefin Core Swivel Radius 5" Bolt Hole Pattern 2-5/8" x 3-5/8" to 3" x 3" Bolt Hole Diameter 3/8" Durometer Shore A 75 (+/-5)
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Diaphragm Pump Evacuation Kit Aluminum Core The source lists the lockProduct Overview UL listed aluminum double diaphragm pump (model 85634), recommended for transferring flammable liquids including used oil, ATF fluid, diesel, and kerosene. Includes rugged, heavy duty, 1" U. L. Listed air operated double diaphragm self priming pump 85634, 1" x 5' fluid hose 237105, 3' air hose 72036, airline filter 600104, regulator 600004, 3 4" x 5' fluid inlet hose 68620 and other air couplings for easy outlet installation. Key