Dometic 300 Series Standard Height vs Thetford Aqua-Magic Style II High

Last updated: November 9, 2026

The Dometic 300 Series Standard Height and the Thetford Aqua-Magic Style II High are evenly matched, rated 3.7 and 3.6. The Thetford Aqua-Magic Style II High wins on features. The Thetford Aqua-Magic Style II High costs $19.98 less ($205.02 vs $225).

Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.

Dometic 300 Series Standard Height vs Thetford Aqua-Magic Style II High

Which should you buy?

Scores side by side

Each factor is scored 0-100 against the same fixed reference points for every RV gravity-flush boat or RV toilet; a clear win is highlighted. How we rank explains each one.

Factor weightDometic 300 Series Standard HeightThetford Aqua-Magic Style II High
Overall rating3.7/53.6/5
Value 25%53 $225, against other toilets in its group61 $205.02, against other toilets in its group
Flush water 20%100 0.1 gal (0.5 L) per flush50 flush volume not published (neutral score used)
Power draw 15%100 no electrical draw100 no electrical draw
Features 25%55 freshwater flush, water-saver flush, household-size bowl80 ceramic or porcelain bowl, freshwater flush, water-saver flush, household-size bowl
Warranty 15%0 warranty not published, scored as none0 1-year warranty

Specifications

Dometic 300 Series Standard HeightThetford Aqua-Magic Style II High
Flushing
TypeGravityGravity
Water per flush0.1 gal-
Freshwater flushYesYes
Water-saver flushYesYes
MaceratorNoNo
ControlGravity flushFoot pedal (dual action)
Power
Draw at 12 VNoneNone
Bowl and fit
Bowl sizeStandard heightHigh profile
Bowl materialPlasticChina
Household sizeYesYes
Soft-close seatNoNo
Inlet hose1/2 in NPT-
Build
Warranty-1 year

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