Valterra's Dominator, Viper and Silverback sewer hose kits are built for the same general job—carrying wastewater from an RV outlet to a suitable dump-station inlet—but the hose construction, section lengths, couplings and included accessories differ. A two-section 20-foot kit also has different storage requirements from a one-piece 15-foot hose. This guide compares the exact part numbers so you can choose a kit that fits your setup.
| Part number | Hose arrangement | Construction |
|---|---|---|
| D04-0275 | Two 10-foot sections | UV-stabilized poly |
| D04-0250 | One 15-foot section | UV-stabilized poly |
| D04-0450 | One 15-foot section | 25-mil TPE with 135-mil outer beading |
| D04-0475 | Two 10-foot sections | 25-mil TPE with 135-mil outer beading |
| D04-0675 | Two 10-foot sections | 24-mil polypropylene with 100-mil outer beading |
| D04-0678 | Two 10-foot hoses plus 5-foot connector | Silverback sewer hose system |
Dominator uses UV-stabilized poly hose that holds its shape to help maintain drainage. The D04-0250 provides a single 15-foot hose. The D04-0275 supplies two 10-foot sections for a total of 20 feet. Both include rotating fittings and a 90-degree universal adapter. For D04-0275, each section collapses to approximately 39 inches; the D04-0250 hose compresses to approximately 57 inches.
The Viper kits in this comparison use 25-mil UV-protected TPE and 135-mil protective beading. D04-0450 provides one 15-foot hose with two drip caps and an elbow; D04-0475 supplies two 10-foot sections with four drip caps and a 90-degree adapter. Their rotating fittings help reduce twisting, but you should still arrange the hose on a suitable downhill route.
The D04-0675 Silverback kit provides two 10-foot hose sections, rotating fittings and a clear 90-degree adapter. Its 24-mil polypropylene construction has UV protection and 100-mil protective outer beading. The D04-0678 is different: it is a complete dual-drain system with two 10-foot sections, an additional 5-foot connector hose, a wye, a clear elbow and four drip caps for connecting compatible waste outlets.
Two 10-foot sections combine for a 20-foot run, or can be used separately where the connections permit. Each collapses to about 39 inches, making storage length and the dimensions of the attached fittings important.
Kit contents: Two rotating-end hose sections and 90° universal adapter
View D04-0275
A one-piece 15-foot Dominator hose, supplied with rotating fittings and an angled dump-station adapter. The hose collapses to about 57 inches for storage.
Kit contents: 15-foot hose with rotating fittings and 90° universal adapter
View D04-0250
A Viper 15-foot kit with 25-mil UV-protected TPE hose and 135-mil protective outer beading. The rotating fittings help reduce hose twisting. Two drip caps and the dump-station elbow are included.
Kit contents: 15-foot rotating-end hose, two drip caps and 90° adapter
View D04-0450
Two 10-foot Viper sections provide 20 feet of hose length. The kit includes rotating couplings, four drip caps and a 90-degree sewer adapter. Each section collapses to about 52 inches.
Kit contents: Two rotating-end hoses, four drip caps and 90° adapter
View D04-0475
The Silverback kit has two 10-foot sections made from 24-mil UV-protected polypropylene with 100-mil protective beading. The rotating fittings help the hose align with the drain route, and a clear 90-degree sewer adapter is supplied.
Kit contents: Two rotating-end hoses and clear 90° universal adapter
View D04-0675
Designed to bring two RV waste outlets into a shared sewer discharge route using a supplied wye and a short connector hose. It is a multi-piece dual-drain kit, not a single 76-inch hose. Compare both waste outlets and available space around the wye.
Kit contents: Two 10-foot hoses, 5-foot hose, wye, clear 90° adapter and four drip caps
View D04-0678RV bayonet outlet → compatible sewer hose → suitable 90-degree adapter → campground inlet. Choose the hose length and fittings for that path, then provide a gentle, supported slope toward the sewer inlet.
Two RV waste outlets → the two matching hose runs → hose wye → shorter connection toward the clear 90-degree dump-station adapter. The D04-0678 dual-drain kit supplies the additional components for this arrangement. Confirm the positions of both outlets and the required connections.
To identify the hose couplings and dump-station elbow, see our Valterra sewer adapters guide. For hose supports while draining, compare Slunky and EasySlider supports. For collapsed hose storage, see our sewer hose carrier sizes and mounting parts.
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