When your RV slideout seal starts to leak or drag, the fix usually comes down to replacing the rubber D seal and the base EK seal together. In the rv camper systems accessories category, two listings offer that exact pair: the Black RV Slide Out Seal 018-312-EKD & 018-341 EK for RV Camper Slideout System at USD 85.99, and the Combo RV Slide Out Seal 018-341 EK 018-312-EKD Fits RV Camper Slideout System at USD 63.99.
Quick verdict
Both listings bundle the same seals - an 018-312-EKD D seal and an 018-341 EK seal - each in 35-foot lengths. The Combo listing costs $22 less for the same listed parts and features. If the part numbers and photo match your slideout, the Combo RV Slide Out Seal 018-341 EK 018-312-EKD is the clear choice. Just confirm the model number, part number, and photo before ordering, as both listings instruct.
Comparison table
| Feature | Black RV Slide Out Seal 018-312-EKD & 018-341 EK for RV Camper Slideout System | Combo RV Slide Out Seal 018-341 EK 018-312-EKD Fits RV Camper Slideout System |
| Price | USD 85.99 | USD 63.99 |
| Included seals | 018-312-EKD & 018-341 EK | 018-341 EK & 018-312-EKD |
| Color | Black | Black |
| Length | 35 feet | 35 feet |
| Installation | Remove tape from EK base, slide D seal on, screw into place | Remove tape from EK base, slide D seal on, screw into place |
| After-sales | Money back or replacement (buyer's choice) | Money back or replacement (buyer's choice) |
Where each wins
Where the Combo wins: Price. It lists the same two seals, the same length, and the same black finish for the lower end of the price range. The Combo is easier on the wallet and doesn't skip any part.
Where the Black listing wins: It doesn't lead on any listed feature or component. The main difference is that its title lists the 018-312-EKD D seal first, which may make it easier to recognize if you search by that number. That presentation choice costs more.
Product notes
Black RV Slide Out Seal 018-312-EKD & 018-341 EK for RV Camper Slideout System
This is the higher-priced listing in this head-to-head. It pairs the 018-312-EKD D seal with the 018-341 EK seal. A good reason to choose it is if you want a set described as made for the RV Camper Slideout System, with the D-seal part number placed first in the title. The limitation is the price-it costs more than the comparable Combo listing for what appears to be the same bundle of listed parts, dimensions, and finish. It's still a new set, but the higher price doesn't add any extra component or feature.
Combo RV Slide Out Seal 018-341 EK 018-312-EKD Fits RV Camper Slideout System
This one takes the same two seals and puts them at the lower end of the listed price range, making it the more economical way to get the 018-312-EKD and 018-341 EK pair. The installation steps are the same: remove the tape, slide the D seal onto the EK base, and screw the rubber into place. The reason to pick it is simple-you get the same listed package for less. The limitation is the title's part-number order: it leads with 018-341 EK instead of 018-312-EKD, so if your records reference the D seal first, you'll want to confirm the photo and part numbers before ordering.
Final choice by use case
If the part numbers match: Choose the Combo RV Slide Out Seal 018-341 EK 018-312-EKD. It's the same set at USD 63.99.
If you want the D-seal number first in the title: The Black RV Slide Out Seal 018-312-EKD & 018-341 EK is the one to order, but you'll pay USD 85.99 for that presentation preference.
If you're unsure the seal matches: Neither listing will help until you compare the model number, part number, and photo to your current slideout seal. Once confirmed, the Combo is the better value.
