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Camco RV Sewer Hose Internal Coupler

Camco RV Sewer Hose Internal Coupler

Item # CAM39203
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Our Price: $4.42
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RV Sewer Hose Fittings
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This coupler makes connecting 2 RV sewer hoses together easy, without needing to worry about having the correct fittings. Simply slide a hose over each end of the coupler. Lowest Prices for the best rv sewer hose fittings from Camco. Camco RV Sewer Hose Internal Coupler part number CAM39203 can be ordered online at or call 1-833-496-1390 for expert service.
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  • Reviews (6)
  • Q & A (0)
  • Videos (1)
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  • Why etrailer?

Camco RV Sewer Hose Fittings - CAM39203

  • Sewer Couplers and Nipples
  • Hose Couplers
  • 3 Inch
  • 3 Inch
  • Sewer Hose to Sewer Hose
  • Camco

This coupler makes connecting 2 RV sewer hoses together easy, without needing to worry about having the correct fittings. Simply slide a hose over each end of the coupler.


  • Coupler fitting connects 2 RV sewer hoses for extra length
  • Fits all 3" sewer hoses
  • Stores in 4" RV bumper

39203 Camco Motor Home Sewer Hose Internal Coupler


Video of Camco RV Sewer Hose Internal Coupler

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Camco RV Sewer - Hose Adapters and Fittings - CAM39203 Review

Today, we're going to be taking a look at the Camco RV sewer hose internal coupler. This coupler makes connecting two RV sewer hoses together quick and easy, without needing to worry about having the correct fittings. All you have to do is slide a hose over each end of the coupler and that's all there is to it. It's made from a durable black plastic construction. It's designed to fit all three-inch sewer hoses, and it's small enough so it can be stored inside of a four-inch RV bumper. Taking a look at the overall length, measuring from edge to edge, that's going to give us a measurement of about three and one-quarter of an inch.

Each slit end is going to measure about an inch and a half and then you're going to have that quarter inch gap in between them. That's going to do it for today's look at the Camco RV sewer hose internal coupler.

Customer Reviews

Camco RV Sewer Hose Internal Coupler - CAM39203

Average Customer Rating:  3.7 out of 5 stars   (6 Customer Reviews)

This coupler makes connecting 2 RV sewer hoses together easy, without needing to worry about having the correct fittings. Simply slide a hose over each end of the coupler.


The coupler's outside diameter is the same as the outside diameter of the sewer hose...It just doesn't fit!


they were well made but we could not get them to go inside the hose, no matter what we tried. we finaly cut them and forced the cuts together to make them work. i think all of them are that way, no matter where they are purchaced.


Very fast shipping, smooth transaction with Etrailer. Sewer coupling was good quality but this one is a little oversize.



worked perfectly



See what our Experts say about this Camco RV Sewer Hose Fittings

  • What is Outer Diameter of Camco RV Sewer Hose Internal Coupler # CAM39203
    The outside diameter of the Camco RV Sewer Hose Internal Coupler # CAM39203 that you referenced is 3 inches.
    view full answer...
  • Need 20-foot RV Sewage Hose Extensions and Connectors
    We do offer four RV sewage hose products in the 20-foot length you need. These include several heavy-duty and one standard-duty hose kit that can be seen on the included link. Some use camlock fittings and others use bayonet fittings. Since your existing hose has no fittings you could use Camco RV Sewer Hose Internal Coupler # CAM39203 to join the non-terminated ends of your multiple hoses together and then choose the additional hoses based on the type of connector you need. You can use...
    view full answer...
  • How To Use Internal Hose Coupler On RV Sewer Hoses
    As long as the RV sewer hoses are 3 inch in diameter without a bayonet fitting like Camco part # CAM39611 the hoses will slide over each end of the coupler part # CAM39203 to join them together. You do not need to heat the coupler up to seal the connection.
    view full answer...
  • How to Cover 75 Feet of Sewer Hose for RV
    The longest hose we offer is 20 feet like with the part # CAM39611 so with four of those to equal a total of 80 feet and then three of the sewer hose couplers part # CAM39203 you'd have the 75 feet you mentioned covered.
    view full answer...
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  • How to Make a 40 foot Long RV Black Water Dump Hose
    To give yourself 40 feet total of sewer hose you would need two of the # CAM39611 which are 20 feet long and then to connect them you would need the coupler part # CAM39203. For a 4 in 1 adapter to use on the hose you would need the part # CAM34971 as well.
    view full answer...
  • Fittings for HTS Super Heavy Duty RV Sewer Hose
    The HTS Super Heavy Duty RV Sewer Hose w/ Built-In Clamps # CAM39901 can work with any standard sewer hose fittings with the exception of the red "E-Z Coupler" fittings. Camco specifically you could use adapters like Valterra Adapter # T1024VP, elbow fittings such as the Camco 90-Degree # CAM39232, couplers like # CAM39203 as well as bayonet fittings and threaded fittings. I have added a link to our entire selection of hose fittings, so you can choose the ones you need, just make sure...
    view full answer...
  • Adapter to Join 2 RV Sewer Hoses Together
    We do have some products that will work to join to sewer hoses together but not one that uses lugs on both sides. What we do have are the threaded adapter # F02-3102 and a non-threaded, similar version # CAM39203. I have linked videos on both parts for you. The parts from # F02-2029VP can't be separated out though.
    view full answer...
  • RV Sewer Hose Setup for Total Length of 35-Feet
    Camco hose # CAM39611 is a light-duty 20-foot hose without bayonet fittings on the ends so it can be used with the coupler # CAM39203 which installs inside the hoses to join two of them. If you prefer sewer hoses with bayonet fittings to make joining multiple hoses easier you might then prefer the heavy-duty Viper 10-foot hose # D04-0410. This has extra-thick 26-mil thermoplastic construction that will last a long time. For a total hose length of 35-feet you an use parts # D04-0275 (20-feet)...
    view full answer...
  • Semi-Permanent RV Sewer Connections Made To Septic and Fresh Water Supply Needed - 75 Feet
    Your fresh water hose is an easy recommendation, I suggest the Camco RV drinking water hose, 5/8" diameter at 75' Long, # CAM22803. This is a reinforced PVC hose for drinking water made of FDA-approved materials and BPA-free. Because you state that you are new to RV living I will make the suggestion that you also use a water pressure regulator, I suggest the Camco RV Water Pressure Regulator, # CAM40055. Please see the attached video for a visual of product. Because inconsistent water...
    view full answer...

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Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Rachelle B
Written by:
Rachelle B
Employee Cole B
Installed by:
Cole B
Employee Chad S
Video Edited:
Chad S

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