When you're shopping for RV camper systems accessories, a worn slideout seal is a problem you feel before you see it: a draft along the wall, a wet spot after rain, or a stubborn slideout that won't close flush. The tricky part is that slideout rubber isn't universal. If your system uses the 018-312-EKD D seal paired with the 018-341 EK base seal, you'll find two combo listings that look nearly identical, both at $63.99. The decision isn't about which seal is better - it's about which listing makes it easier to confirm you have the right part before you order.
Quick verdict: Both listings combine the same two seal profiles: 35-foot runs of the 018-312-EKD D seal and the 018-341 EK base seal, in black, sold new with money-back or replacement after-sales. The practical difference is which part number leads the title. Choose the listing that puts the number you need to verify first; the kit contents and price are otherwise the same.
| Comparison | Combo 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 63.99 | USD 63.99 |
| Lead part number | 018-312-EKD | 018-341 EK |
| Profiles included | 018-312-EKD and 018-341 EK | 018-341 EK and 018-312-EKD |
| Color | Black | Black |
| After-sales | Money back or replacement (buyer's choice) | Money back or replacement (buyer's choice) |
Understanding the parts helps here. The 018-312-EKD is the D seal that slides onto the base track, and the 018-341 EK is the rubber base that mounts to the slideout frame. Each profile comes in a 35-foot run, so the combo gives you enough material to address both layers of the seal assembly in one pass.
Where each listing wins: The 018-312-EKD-led combo wins if the D seal is the part you want to confirm first. The 018-341 EK-led combo wins if the base seal is what you need to match against your slideout. Beyond that, there's no quality or material difference between the two; they're the same pair of profiles. Because the kit contents are identical, your choice should be driven by which part number you already have in hand.
Combo RV Slide Out Seal 018-312-EKD & 018-341 EK For RV Camper Slideout System
This listing leads with the 018-312-EKD D seal, which is the part that slides onto the base track. If you already know your slideout uses the D-seal profile, having that number first makes the match easier to spot when you're quickly scanning your options. The kit includes both the 018-312-EKD and the 018-341 EK profiles, so you're covered for the full seal run. The limitation is that you still need to confirm both part numbers and the photo against your current rubber; leading with one number doesn't guarantee compatibility if your system uses a different base seal.
Combo RV Slide Out Seal 018-341 EK 018-312-EKD Fits RV Camper Slideout System
This listing flips the emphasis to the 018-341 EK base seal, the rubber that mounts to the slideout frame. If the base seal is the number you keep referring to while sizing up the job, this title puts it front and center. You still get the same kit with both seal profiles. The trade-off is that the title is just a cue; you'll want to compare the photo and part numbers to your old seal before committing, since a different base shape means this pair won't work.
Final choice by use case: Start by reading the part number on your existing slideout seal. If it says 018-312-EKD, go with the combo listing that leads with that number. If it says 018-341 EK, choose the listing that leads with that number. If both numbers appear on your old part, either combo works - you'll end up with the same two-profile kit either way.
