There are differences; the EZ Coupler RV Sewer Hose # D04-0113 is 10' and has both a 3" bayonet fitting and swivel fitting while the Valterra # D04-0111 is 5' and has a pair of 3" bayonet fittings.
Those hoses do have the same 3" diameter, 18-mil vinyl construction and are red in color. view full answer...
The tire size we show as standard on the 2007 Chevrolet Silverado Classic is 245/70-17. For this tire size the Konig chains you referenced, K-Summit Diamond Pattern chains # TH02230K77, are a compatible fit. However, please note that the other chains referenced, the Pewag Brenta-C 4X4 Snow Tire Chains # PWXMR81V, are not a fit for 245/70-17 tires.
When it comes to tire chains the auto maker gets the final word on what is compatible and safe. My suggestion is to review your owner's manual... view full answer...