When an RV slide-out seal starts to crack or let in dust, you need a replacement that matches the original part numbers exactly. In RV camper systems accessories, the pair you will often see is the 018-312-EKD D seal and the 018-341 EK base seal. Two combo kits offer these same two parts in black, and their specifications look nearly identical. The listed prices, however, are not the same. Which one should go into your cart?
Quick verdict
For most RV owners, the Combo RV Slide Out Seal 018-341 EK 018-312-EKD Fits RV Camper Slideout System is the easier choice. It carries the lower listed price while offering the same part combination as the higher-priced kit. The For Rv Camper Slideout System 2 In 1 Rv Slide Out Seal 018-312-Ekd & 018-341 Ek does not show an added feature for its higher price. The only real reason to pick it is if the phrase "2 In 1 Rv Slide Out Seal" matches the labeling or parts list you are already working from.
Comparison at a glance
| Product | Listed price | Seal pair | Color | Condition | After-sales option |
|---|---|---|---|---|---|
| Combo RV Slide Out Seal 018-341 EK 018-312-EKD Fits RV Camper Slideout System | USD 63.99 | 018-312-EKD & 018-341 EK | Black | New | Money back or replacement (buyer's choice) |
| For Rv Camper Slideout System 2 In 1 Rv Slide Out Seal 018-312-Ekd & 018-341 Ek | USD 85.99 | 018-312-EKD & 018-341 EK | Black | New | Money back or replacement (buyer's choice) |
Where each product wins
The Combo RV Slide Out Seal wins on the listed price. It gives you the same dual-seal setup as the other kit for the lower of the two amounts, and its title spells out exactly which two seals are included.
The 2-in-1 Rv Slide Out Seal does not win on a physical specification. Its edge is wording: if your RV documentation or old parts list says "2 In 1 Rv Slide Out Seal," this title lines up with that label. That can be useful for record keeping, but it is not a performance advantage.
Product notes
#### Combo RV Slide Out Seal 018-341 EK 018-312-EKD Fits RV Camper Slideout System
This kit is the one to choose when you want the lower listed price. It combines the 018-312-EKD D seal with the 018-341 EK base seal. The two seals are designed to work together. The install steps are straightforward: remove the tape from the EK seal base, slide the D seal onto the base track, and screw the rubber into place. The main thing to watch is fit confirmation. Before ordering, verify that the model number, part number, and photo match your old seal. Because these part numbers are precise, take that step seriously before checkout.
#### For Rv Camper Slideout System 2 In 1 Rv Slide Out Seal 018-312-Ekd & 018-341 Ek
This kit offers the same 018-312-EKD and 018-341 EK parts, but the title leads with the phrase "2 In 1 Rv Slide Out Seal." If you need that exact wording to keep your parts records consistent, this can be worth considering. The limitation is price. At the higher listed price, it costs more than the Combo kit, and the higher price covers the same parts. For most RV owners, the function is the same, so the wording is the main difference. Unless the product title is part of your ordering workflow, the lower-priced kit makes more sense.
Final choice by use case
If you want the better listed price and the same two seals, go with the Combo RV Slide Out Seal 018-341 EK 018-312-EKD Fits RV Camper Slideout System.
If you specifically need a product title labeled "2 In 1 Rv Slide Out Seal" because that matches your RV system or your notes, the For Rv Camper Slideout System 2 In 1 Rv Slide Out Seal 018-312-Ekd & 018-341 Ek will work, but you are paying more for the same parts. In most cases, the Combo kit is the sensible pick.

