Choosing between two RV slide out seal kits that list the same part numbers can feel like a coin flip, but it doesn't have to be. Both listings use the 018-312-EKD D seal and 018-341 EK base, come in black, and are sold as new. Before you order, compare the part numbers and photos to the seal currently on your camper to avoid getting the wrong part. Once that checks out, the only real decision is which listing to put in your cart.
Quick verdict
If the part numbers match your slide out, the Combo RV Slide Out Seal listing is the default pick. It shares the same pieces, color, condition, and after-sales policy as the 2 in 1 listing. The price comparison below shows the difference, and it favors the Combo listing. Unless the "2 in 1" wording in the title is important to you, go with the Combo listing.
Side-by-side comparison
| Listing | Price | Price indicator | Roll length | After-sales |
|---|---|---|---|---|
| Combo RV Slide Out Seal 018-312-EKD & 018-341 EK | USD 63.99 | 35 ft | Money back or replacement (buyer's choice) | |
| 018-312-EKD 018-341-EK 2 in 1 RV Slide Out Seal For RV Camper Slideout System US | USD 65.99 | 35 ft | Money back or replacement (buyer's choice) |
Where each listing wins
- Combo RV Slide Out Seal wins for budget-conscious shoppers. It is the lower-priced listing and the part numbers match the 2 in 1 option, so there is no functional reason to spend more once you have confirmed compatibility.
- 2 in 1 RV Slide Out Seal wins for shoppers who want the title to say it all. The "2 in 1" wording makes the two-piece setup clear at a glance, and the installation steps are the same.
Product notes
Combo RV Slide Out Seal
This is the listing to pick when you want the same part numbers without paying extra. At USD 63.99, it is the lower-priced option, and it describes the same easy installation process: remove the tape from the 018-341 EK seal, slide the 018-312-EKD D seal onto the base, and screw the rubber into place. The seal is black and new. The main limitation is that the title does not use the phrase "2 in 1." If you are comparing titles quickly, you might miss that this combo kit includes both the D seal and the EK base, but that is exactly what the part numbers tell you. For most buyers, the lower price makes that minor trade-off worth it.
2 in 1 RV Slide Out Seal
This listing is the pick if you want the product name to state the two-in-one setup. Priced at USD 65.99, it is $2 more than the Combo listing, but the title says "2 in 1" directly, which can save a few seconds when you are scanning search results. It shares the same installation guidance as the Combo listing: the D seal slides onto the EK base and then screws into place. The only real downside is the higher price for the same part numbers and dimensions. If you do not need the "2 in 1" phrasing in the title, the Combo listing gives you the same set for less.
Final choice by use case
- Order the Combo listing when you want the lower-priced option and have already confirmed the part numbers.
- Order the 2 in 1 listing when you prefer the product title to spell out the two-piece configuration and you prefer that title wording.

