Ultra-Fab 39-941707 Ultra Power Twin II - 22" Lift The Power Twin II has a unique extension-brace design to stop side-to-side and front-to-back motion Powerful, dual electric motors utilize 12 volt operation and assist independent lifting and leveling Fully adaptable to all towable RV frame types and adjusts from 42" to 77" wide 22" stabilizer model is ideal for Class C Motorhome applications rear only Manufacturers 3 Year Warranty. The only stabilizer that levels and stabilizes all at the same time; Most stabilizers stop side-to-side motion but the PowerTwin II will also stop front-to-back motion as well; 12V dual motors for independent lifting and leveling at the flip of a switch Fits low profile travel trailers, 5th Wheels and Class C motorhomes with frames from 42" to 77" and features 22" of leg extension Manufactures 3-Year Warranty