When you're shopping for rv camper systems accessories, a worn slide-out seal is easy to overlook until rain, dust, or road noise sneaks into your camper. Two seals built around the common 018-312-EKD and 018-341-EK part numbers look nearly identical, but they're priced $12 apart. This head-to-head helps you decide which one belongs on your RV.
Quick verdict
Both options are new rubber seals for the same 018-312-EKD and 018-341 EK profiles. The lower-priced option is the sensible pick for most buyers because it matches the pricier version's features for $12 less. Choose the pricier option if you want a 2-in-1 seal set and extra fit guidance.
Comparison table
| Feature | New For RV Camper Slideout System Seal | 2 in 1 RV Slide Out Seal |
|---|---|---|
| Price | USD 53.99 | USD 65.99 |
| 018-312-EKD Dimension | 1" x 15/16" x 35' | 1" x 15/16" x 35' |
| 018-341 EK Dimension | 1/2" x 2.75" x 35' | 1/2" x 2.75" x 35' |
| Color | Black | Black |
| Condition | New | New |
| After-sales | Money back or replacement | Money back or replacement |
Where each product wins
The lower-priced option wins on price. It provides the same listed specifications as the pricier option for a lower cost. If you've already verified your part numbers, this is the efficient buy.
The pricier option wins on guidance. Its description includes a note to confirm the model number, part number, and photo before ordering, and it mentions removing the tape from the 018-341 EK seal.
Product notes
New For RV Camper Slideout System RV Slide Out Seal 018-312-EKD 018-341 EK US
At $53.99, this is the lower-priced of the two. It lists both component profiles in the title, and its description explains the core installation method: slide the 018-312-EKD D seal onto the EK seal base and screw it into place. If you've already confirmed your camper uses these part numbers, this option gives you the same profile set for less money. The one limitation is that the title reads as a single replacement seal, not a "2 in 1" kit, so it's less obvious that both profiles are included. You'll need to recognize the part numbers yourself, rather than relying on a kit label.
018-312-EKD 018-341-EK 2 in 1 RV Slide Out Seal For RV Camper Slideout System US
The "2 in 1" label makes it clear that this is a matched set of both seal profiles. The description goes a step further by reminding you to verify the model number, part number, and photo before ordering, and it starts the installation process with removing the tape from the 018-341 EK seal. For a first-time DIYer, that caution and the tape-removal step are genuinely useful. The limitation is the higher price: you're paying more for the same profile set as the lower-priced option. If you're comfortable with the install and confident in the part numbers, the extra cost is hard to justify.
Final choice by use case
For a straightforward replacement with confirmed part numbers, go with the lower-priced seal. You get the same profile set for less money. For a first-time installer or anyone worried about ordering the wrong part, the pricier 2-in-1 kit's verification note and tape-removal instruction provide a bit more confidence. In short, the lower-priced option is the one to pick for most, while the higher-priced one is worth it for the extra guidance.
