Best Enviro Design Products in 2026

4.00" sewer cap for use in RV parks/campgrounds and as a RV dump station lid

Male version easily threads into standard threaded PVC collar

Overall dimensions: 8" x 5" x 3 1/4"

4.00" polypropylene sewer cap for use in RV parks/campgrounds and as a RV dump station lid

Male version easily threads into standard threaded PVC collar

Overall dimensions: 8" x 5" x 3 1/4"

Protects and Supports Your RV Sewer Hose: Lifts and guides your sewer hose to help waste move downhill; Provides stable, simple drainage

Compatibility: Fits up to a 20-foot RV sewer hose; Works with all 3-inch diameter hoses

Unique Design: A flexible design allows the support to curve around obstacles; Product is angled to create a downward slope for better drainage; Deep cradles hold your RV sewer hose in place without straps

Protects and Supports Your RV Sewer Hose: Lifts and guides your sewer hose to help waste move downhill; Provides stable, simple drainage

Compatibility: Fits up to a 10-foot RV sewer hose; Works with all 3-inch diameter hoses

Unique Design: A flexible design allows the support to curve around obstacles; Product is angled to create a downward slope for better drainage; Deep cradles hold your RV sewer hose in place without straps

Securely Connects: This RV sewer elbow adapter fits securely into 4 dump station inlets: 4-inch NPT, 3.5-inch NPT, 3-inch NPT, and 3-inch slip fitting

Clear RV Sewer Elbow: The elbow is clear, so you can see when your sewer hose has finished draining; has a built-in gasket for an odor-tight connection

Compatibility: The swivel bayonet fitting makes the RV sewer hose adapter compatible with any standard lug fitting and allows it to rotate 360 degrees, making it easy to connect

Caps the sewer connection to prevent leaks

Caps with hose connection that allows to drain grey water tank easily

Bayonet style tabs lock securely to rv drain valve

Extends Your RV Sewer Hose Outlet: Allows you to extend your RV sewer hose outlet by 5-inches for an easier, more convenient hose hookup

Transparent Design: The clear adapter lets you see when your system is fully rinsed

Non-Restrictive: Allows free water flow and fast dumping

Attaches directly to the RV outlet connection.Fit Type: Universal Fit

Extends RV sewer outlet connection for easier hookup

Clear adapter allows to see when tank is fully rinsed

90 degree swivel sewer hose fitting

Built-in gaskets for odor tight connection

Has swivel lug fitting and swivel bayonet fitting

Backup Gate Valve: Provides a quick fix for leaky valves

Clear Adapter: The 3 ½-inch long clear adapter allows you to see when the tank is completely empty

Universal Fit: Fits all 3-inch sewer fittings

SUPER kit includes two 10' 18mil super heavy-duty HTS vinyl sewer hoses with pre-attached swivel fittings

Fittings swivel 360 degrees for easy connecting and disconnecting

Included 4-in-1 adapter is compatible with 3-inch slip or 3-inch, 3-1/2-inch and 4-inch NPT threaded sewer connection

Allows two sewer hoses with lug fittings to connect to the same dump station.Fit Type: Universal Fit

Built in gaskets for odor tight connection

All three ends swivel 360 degrees

Sewer hose has superior abrasion resistance and crush protection

Includes pre-attached Rhino swivel fittings - bayonet and transparent elbow with 4-in-1 dump station fitting

Also includes snap-glue fittings and storage caps. 4-in-1 adapter allows storage in 4" square bumpers

Set Includes: RV sewer hose kit comes with 4-in-1 dump station fittings with a transparent elbow, a storage cap for each end, and two 10-foot sections with pre-attached Rhino swivel bayonet and lug fittings

Efficient Design: RV sewer hose extension features TPE technology that protects against pinholes and offers superior abrasion resistance and crush protection

Compatible With: The 4-in-1 adapter is compatible with a 3-inch slip or 3, 3-1/2, and 4-inch NPT threaded sewer connections

Direct jet allows water stream to rinse and flush RV sewer systems.Fit Type: Universal Fit

Rhino Blaster Tank Rinser firmly attached to RV sewer outlet via bayonet swivel fitting

Vacuum breaker averts backflow into water hose

Transparent 90° Elbow: Allows you to easily connect your portable tote tank to your RV sewer hose

Low Profile Design: 90° elbow creates downhill flow for maximum drainage while dumping

Universal Fit: Connects to any lug sewer fitting—forming a fastened, odor-tight connection

45 degree swivel fitting

Clear fitting to see if holding tank is empty

Swivel lug and bayonet fitting for secure connection

Direct jet allows water stream to rinse and flush RV sewer systems

Rhino Blaster Pro Tank Rinser securely attached to RV sewer outlet via bayonet swivel fitting

Gate valve prevents backflow into sewer hose

NO MESS: At-home RV body valve repair is mess-free for your convenience

VERSATILE: Bladex valve is compatible with GrenTec, Blade, Valterra, Bristol, and Anonda valves

DIY REPAIRS: Eliminate the need for costly service work!

Connects to RV Dump Station: Allows quick hook-up to a RV dump station.Fit Type: Universal Fit

Compatibility: Designed for Camco's RhinoFLEX Sewer Hoses (10-Foot RhinoFLEX Sewer Hose- #39671 and 15-Foot RhinoFLEX Sewer Hose- #39681)

Transparent Elbow: Lets you see when your tanks are empty and clean; elbow separates to fit in 4-inch RV bumper

Direct jet allows water stream to rinse and flush RV sewer systems

Rhino Blaster Pro Tank Rinser attachs to RV sewer outlet via bayonet swivel fitting

Gate valve stops backflow into sewer hose

No more mess with an old valve problem.Fit Type: Universal Fit

Twists onto your current waste valve

Eliminates expensive service work

The Rhino Sewer Hose Adapter Flexible Drain includes a pre-assembled Rhino Extreme hose with sewer fitting, a 3-in-1 seal adapter and a pull handle. The seal fits in a 3, 3 and 1/2 or 4 inch inlet. No tools or setup required.

Adjusts to any angle for better drainage

3-in-1 seal adapter works with damaged threads

Holds your Rhino tote tank onto standard RV bumpers.Fit Type: Universal Fit

Ideal for RVs without ladders

Fits 4-inch and 4-1/2-inch bumpers

Easily attach and detach your sewer hose assembly from the sewer inlet without excessive handling

Black, flexible adapter is compatible with 3" NPT, 3-1/2" NPT and 4" NPT sewer inlets

Ridges allow the adapter to be firmly pressed in place without the need for twisting, even when sewer inlet threading is stripped or dirty

RV waste outlet adapter

Rotates for easy connection

3" male threads

Assembled Kit Includes: (1) 90-degree transparent elbow with swivel bayonet fitting, (1) RhinoFLEX tote tank sewer hose, (1) hose-to-RV swivel bayonet fitting, and (2) storage caps

Compatibility: Connects your portable waste tote tank to a lug sewer fitting

Fittings Swivel: For ease of use and are designed to stay sealed

Easily drains the RV fresh water tank

Graduated for use with 3/4" or 1/2" vinyl tubing

Built using durable plastic

Waste valve cap

Cap Size: 3" with capped 3/4" GHT

O.D.: 3.800"

Attaches directly to the RV outlet connection

Allows to extend the connection out for easier Hookup

Clear adapter allows to see when tank is fully rinsed