Dometic 300 Series Standard Height vs Thetford Aqua-Magic VI High Profile

Last updated: November 9, 2026

The Dometic 300 Series Standard Height and the Thetford Aqua-Magic VI High Profile are evenly matched, rated 3.7 and 3.6. The Thetford Aqua-Magic VI High Profile wins on value. The Thetford Aqua-Magic VI High Profile costs $71.65 less ($153.35 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 VI High Profile

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 VI High Profile
Overall rating3.7/53.6/5
Value 25%53 $225, against other toilets in its group86 $153.35, 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 bowl55 soft-close seat, freshwater flush, water-saver flush
Warranty 15%0 warranty not published, scored as none0 1-year warranty

Specifications

Dometic 300 Series Standard HeightThetford Aqua-Magic VI High Profile
Flushing
TypeGravityGravity
Water per flush0.1 gal-
Freshwater flushYesYes
Water-saver flushYesYes
MaceratorNoNo
ControlGravity flushFoot pedal
Power
Draw at 12 VNoneNone
Bowl and fit
Bowl sizeStandard heightHigh profile
Bowl materialPlastic-
Household sizeYes-
Soft-close seatNoYes
Seat height-18 in
Inlet hose1/2 in NPT-
Build
Warranty-1 year

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