Choosing between two RV slide-out seal options usually comes down to compatibility and price. Here, both options point to the same pair of part numbers and the same $63.99 cost, so the decision is less about specs and more about which product title you trust at a glance.
Quick verdict
Both products are selling the same two-piece slide-out seal kit: the 018-312-EKD D seal and the 018-341 EK seal base. If you came looking for a replacement seal for an RV camper slideout system, either product will get you the same parts, same condition, and same after-sales promise. The quick verdict is that you can buy with confidence from either one; the tie-breaker is which title makes the order feel clearer to you.
Comparison table
| Product | Price | Included parts | Dimensions | Color | Condition | After-sales |
|---|---|---|---|---|---|---|
| Black RV Slide Out Seal 018-312-EKD & 018-341 EK | USD 63.99 | 018-312-EKD D seal + 018-341 EK seal base | 018-312-EKD: 1 inch x 15/16 inch x 35 feet; 018-341 EK: 1/2 inch x 2.75 inches x 35 feet | Black | New | Money back or replacement (buyer's choice) |
| Combo RV Slide Out Seal 018-341 EK 018-312-EKD | USD 63.99 | 018-341 EK seal base + 018-312-EKD D seal | 018-312-EKD: 1 inch x 15/16 inch x 35 feet; 018-341 EK: 1/2 inch x 2.75 inches x 35 feet | Black | New | Money back or replacement (buyer's choice) |
Where each product wins
On paper, neither product has a spec advantage. They share the same contents and dimensions. The only real difference is the title.
The Black RV Slide Out Seal title wins if you want the finish called out first. Seeing Black right before the part numbers can be reassuring when you know your current seal is dark.
The Combo RV Slide Out Seal title wins if you want the two-piece arrangement called out first. It tells you immediately that the D seal and the seal base are meant to be ordered together.
Product notes
Black RV Slide Out Seal 018-312-EKD & 018-341 EK
The Black RV Slide Out Seal title puts the word Black before anything else, so it's a natural match if you want to confirm the finish at a glance. The title still carries both part numbers, so you can see you're getting the 018-312-EKD D seal and the 018-341 EK seal base. Before you order, make sure the part numbers and photos match the seal you're replacing. Because the title doesn't call itself a combo, take an extra second to scan the included parts so you know both pieces are in the order. The Black RV Slide Out Seal title is best for shoppers who already know the part numbers and just want a clear black seal for their RV camper slideout system.
Combo RV Slide Out Seal 018-341 EK 018-312-EKD
The Combo RV Slide Out Seal title leads with the word Combo, which makes it immediately clear that the order includes both the 018-341 EK seal base and the 018-312-EKD D seal. With this kit, the installation process is straightforward: pull the tape off the EK seal, slide the D seal onto the base, and screw the rubber into place. That's a useful clue if you're doing the job yourself. The limitation is shared with the other title: you still need to confirm the part numbers and photos match your existing slideout seal before paying. For an RV camper systems accessories purchase, that part-number check is the step that keeps you from ordering the wrong profile.
Final choice by use case
If you're buying by finish, choose the Black RV Slide Out Seal title. If you're buying by kit, choose the Combo RV Slide Out Seal title. And if you're buying strictly by part number, either title gets you the same D seal and seal base, so pick whichever feels clearer when you place the order.

