Ridgid K-400 AUTOFEED Drum Machine vs Ridgid K-750 AUTOFEED Drum Machine

Last updated: November 3, 2026

The Ridgid K-400 AUTOFEED Drum Machine rates 3.8 among small lines drain cleaning machines; the Ridgid K-750 AUTOFEED Drum Machine rates 3.5 among main lines ones. The Ridgid K-400 AUTOFEED Drum Machine costs $2,473.86 less ($949.07 vs $3,422.93).

Ridgid K-400 AUTOFEED Drum Machine vs Ridgid K-750 AUTOFEED Drum Machine

Prices were last checked November 3, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.

Scores side by side

These two sit in different line size classes (small lines and main lines), and each is scored against the reference points for its own class, so a rating says how well each does among its own line size peers. How we rank explains each factor.

Factor weightRidgid K-400 AUTOFEED Drum MachineRidgid K-750 AUTOFEED Drum Machine
Overall rating3.8/53.5/5
Price 25%26 $949.0713 $3,422.93
Cable 25%70 75 ft of 3/8 in cable68 100 ft of 5/8 in cable
Motor 10%31 249 W motor57 373 W motor
Features 20%100 auto feed, foot switch, reverse, cutters included55 auto feed, cutters included
Warranty 20%100 lifetime warranty100 lifetime warranty

Specifications

Ridgid K-400 AUTOFEED Drum MachineRidgid K-750 AUTOFEED Drum Machine
Cable
TypeDrum machineDrum machine
Included cable75 ft x 3/8 in100 ft x 5/8 in
Drain sizes1.5 to 3 in3 to 6 in
Cutters included45
Motor
Motor249 W373 W
Horsepower0.3 hp0.5 hp
Speed170 rpm200 rpm
Voltage115 V115 V
Controls and build
Auto feedYesYes
Foot switchYes-
ReverseYes-
Weight45 lb-
WarrantyLifetimeLifetime

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