Quick Verdict
When you're shopping RV camper systems accessories to replace a worn slideout seal, the immediate question is whether you need the D profile, the base seal, or both. The Black RV Slide Out Seal and the Combo RV Slide Out Seal both answer that with the same two-piece set at the same $63.99 listed price: an 018-312-EKD D-seal and an 018-341 EK base. There is no price difference to break the tie, so the decision comes down to which listing name feels more natural when you're matching part numbers.
What's in the Kit
Both listings bundle the same profiles: an 018-312-EKD D-shaped seal at 1" x 15/16" x 35' and an 018-341 EK base seal at 1/2" x 2.75" x 35'. Both are described as new, easy to install, and durable. The assembly steps run the same for each: remove the tape from the 018-341 EK base, slide the D-seal onto the base track, and screw the rubber into place. Either listing gives you a complete pair of profiles in one kit rather than a single seal.
At a Glance
| Product | Listed Price | Price Bar | D-Seal Dimension | EK-Seal Dimension |
|---|---|---|---|---|
| Black RV Slide Out Seal 018-312-EKD & 018-341 EK for RV Camper Slideout System | USD 63.99 | 1" x 15/16" x 35' | 1/2" x 2.75" x 35' | |
| Combo RV Slide Out Seal 018-312-EKD & 018-341 EK For RV Camper Slideout System | USD 63.99 | 1" x 15/16" x 35' | 1/2" x 2.75" x 35' |
Where Each Listing Wins
On every practical detail in these listings, the Black and Combo versions are tied: the same two profiles in new condition. The only real difference is the naming. The Black title puts the color first, which helps if you identify the seal by appearance. The Combo title puts the kit nature front and center, which helps if you think of this as a two-profile set. Neither title changes the contents, so use the model numbers 018-312-EKD and 018-341 EK to confirm you're ordering the right pair.
Product Notes
Black RV Slide Out Seal 018-312-EKD & 018-341 EK for RV Camper Slideout System
Choose this listing if color is your main identifier. The title leads with "Black," and the listing confirms the black finish. It also groups both part numbers-018-312-EKD and 018-341 EK-right in the name, which helps when you're matching a D-seal and base by model number. The trade-off is that it never uses the word "combo," so if you think of the part as a kit rather than a color, the sister listing's naming may be clearer to you. The listing also asks you to make sure the model numbers and photos match your slideout seal before ordering, so keep your old part handy while you compare.
Combo RV Slide Out Seal 018-312-EKD & 018-341 EK For RV Camper Slideout System
Pick this listing if you want "combo" in the first words of the title; that instantly communicates that the D-seal and EK base are sold together as a pair. The part numbers are still front and center, so matching 018-312-EKD and 018-341 EK is straightforward. One limitation: the title doesn't mention black up front, so if color is how you recognize the seal, you'll need to check the black finish in the listing before ordering. As with the other listing, confirm the model numbers and photos match your slideout before you place the order.
Final Choice by Use Case
Choose the Black RV Slide Out Seal if you want the title to state the black finish immediately and you already know your part numbers are 018-312-EKD and 018-341 EK. Choose the Combo RV Slide Out Seal if you prefer the paired-kit framing in the first words and you're fine confirming the color in the listing. Since the listed contents are the same, the real distinction is which name matches how you think about the replacement part.
