Replacing the rubber seals around your RV or camper slideout means matching two part numbers: the 018-312-EKD D-seal and the 018-341 EK base. All four products here are described as black, new two-piece seal sets with the same dimensions - the D-seal at 1" x 15/16" x 35' and the base at 1/2" x 2.75" x 35'. The real decision is price and title naming. Listed prices run from $50.00 to $85.99, so the same basic seal set can vary by more than $35 depending on which option you choose. Because the D-seal is designed to slide onto the EK base, getting both pieces from one set can simplify the part-number match.
Quick take
All four are described as black, new sets with the same two-part seal arrangement. If you want the lowest listed price, the Combo RV Slide Out Seal set is the entry point. If you prefer a title that spells out both part numbers with a plus sign, the RV Slide Out Seal Combo is a close mid-price option. The New For RV Camper Slideout System version also sits in the middle. The 2-in-1 combo carries the highest listed price in this group.
Listed-price comparison
| Product | Listed price | Price indicator |
|---|---|---|
| For Rv Camper Slideout System 2 In 1 Rv Slide Out Seal 018-312-Ekd & 018-341 Ek | USD 85.99 | |
| New For RV Camper Slideout System RV Slide Out Seal 018-312-EKD 018-341 EK US | USD 53.99 | |
| Combo RV Slide Out Seal 018-312-EKD & 018-341 EK For RV Camper Slideout System | USD 50.00 | |
| RV Slide Out Seal Combo 018-312-EKD + 018-341 EK for RV Camper Slideout System | USD 53.00 |
Decision matrix
| If you want… | Pick… | Price position |
|---|---|---|
| The lowest listed price | Combo RV Slide Out Seal 018-312-EKD & 018-341 EK For RV Camper Slideout System | Entry point |
| Both part numbers with a plus sign and a mid-range price | RV Slide Out Seal Combo 018-312-EKD + 018-341 EK for RV Camper Slideout System | Close to the low end |
| A title that emphasizes "New" and includes "US" | New For RV Camper Slideout System RV Slide Out Seal 018-312-EKD 018-341 EK US | Middle of the group |
| A "2 in 1" label and the highest listed price | For Rv Camper Slideout System 2 In 1 Rv Slide Out Seal 018-312-Ekd & 018-341 Ek | Top of the range |
All four options share the same part-number pair and the same black, new condition. The differentiators here are title wording and listed price.
Product notes
For Rv Camper Slideout System 2 In 1 Rv Slide Out Seal 018-312-Ekd & 018-341 Ek
The "2 in 1" wording is unique among these four options, making this the easiest title to recognize as a single seal pairing. The description includes the standard part-number and photo confirmation note, so you still need to match your existing seal to the 018-312-EKD and 018-341 EK before ordering. It also describes the same black, new condition shared across the group. The trade-off is the price: this version carries the highest listed price in this four-product comparison, even though the described dimensions match the other sets.
New For RV Camper Slideout System RV Slide Out Seal 018-312-EKD 018-341 EK US
The title leads with "New" and includes "US," which gives it a distinct label in the group. The description says the tough rubber can withstand extreme weather and keep out corrosion. The listed price sits close to the two lower options, making it a middle-of-the-pack choice if you want "New" in the title at a modest price position. The same part numbers and dimensions appear as in the other sets, so the main reason to pick it is the title wording rather than a different seal design.
Combo RV Slide Out Seal 018-312-EKD & 018-341 EK For RV Camper Slideout System
This is the lowest listed price in the group. It still names both part numbers and describes the pair as a combo set. The description includes the same weather-resistance and installation language as the other sets, so the main reason to choose it is the price position. The description also repeats the part-number match request, so confirm your existing seal lines up with the 018-312-EKD and 018-341 EK before ordering. If you want to keep the listed cost down, this combo is the clear entry point.
RV Slide Out Seal Combo 018-312-EKD + 018-341 EK for RV Camper Slideout System
This title uses a plus sign between the two part numbers, which makes the combination explicit at a glance. The description mentions sliding the D-seal onto the EK base and screwing the rubber into place, and it describes the rubber as tough and weather-resistant. The listed price remains near the lower end, so it is a practical choice if you want both part numbers clearly stated without choosing the highest-priced option. The same part-number confirmation note applies, so double-check your existing seal against the 018-312-EKD and 018-341 EK before ordering.
Final recommendation by use case
If you are watching the listed price, go with the Combo RV Slide Out Seal, the lowest priced option here. If you prefer the part numbers separated by a plus sign and want to stay near the low end, the RV Slide Out Seal Combo is a balanced pick. The New … US version gives you "New" and "US" in the title at a similar price point. The 2-in-1 option shares the same described dimensions and part numbers, so its main distinction is the "2 In 1" label and the highest listed price in this group. The choice ultimately comes down to how much you want to spend and how important the product title is to you.
