For a homeowner who wants a main line machine with auto feed for under $500. A budget build with no stated warranty.
Amazon $479.99The Maxsa 100 ft x 3/4 in Drain Machine rates 4.1 among main lines drain cleaning machines; the HoldwellS 100 ft x 3/8 in Drain Machine rates 4.0 among small lines ones. The HoldwellS 100 ft x 3/8 in Drain Machine costs $188.60 less ($291.39 vs $479.99).

For an occasional user who wants the most cable and auto feed for the least money. It is a budget clone with little backing.
Amazon $291.39Prices 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 (main lines and small 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 weight | Maxsa 100 ft x 3/4 in Drain Machine | HoldwellS 100 ft x 3/8 in Drain Machine |
|---|---|---|
| Overall rating | 4.1/5 | 4.0/5 |
| Price 25% | 83 $479.99 | 91 $291.39 |
| Cable 25% | 91 100 ft of 3/4 in cable | 98 100 ft of 3/8 in cable |
| Motor 10% | 100 750 W motor | 50 motor power not published (neutral score used) |
| Features 20% | 100 auto feed, foot switch, reverse, cutters included | 100 auto feed, foot switch, reverse, cutters included |
| Warranty 20% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| Maxsa 100 ft x 3/4 in Drain Machine | HoldwellS 100 ft x 3/8 in Drain Machine | |
|---|---|---|
| Cable | ||
| Type | Drum machine | Drum machine |
| Included cable | 100 ft x 3/4 in | 100 ft x 3/8 in |
| Drain sizes | 4 to 8 in | 2 to 4 in |
| Cutters included | 6 | 8 |
| Motor | ||
| Motor | 750 W | - |
| Speed | 1,850 rpm | 1,800 rpm |
| Controls and build | ||
| Auto feed | Yes | Yes |
| Foot switch | Yes | Yes |
| Reverse | Yes | Yes |