Choosing a replacement slide-out seal for your RV camper means finding a set that matches the part numbers already on your rig, installs cleanly, and doesn't leave you guessing. In the rv camper systems accessories aisle, you're looking at two nearly identical combo kits: the Combo RV Slide Out Seal 018-312-EKD & 018-341 EK and the 018-312-EKD 018-341-EK 2 in 1 RV Slide Out Seal. Both carry the same 018-312-EKD D seal and 018-341 EK base seal, so the real question is which product name-and which price-deserves your order.
Quick verdict
Pick the Combo RV Slide Out Seal 018-312-EKD & 018-341 EK if you want the same two seal pieces as the 018-312-EKD 018-341-EK 2 in 1 RV Slide Out Seal but with a more familiar combo name. Both kits are functionally identical from the part numbers that define them. The 2 in 1 is not a different product; it's the same pairing with a more emphatic title. Unless the phrase '2 in 1' matters to you, go with the Combo.
At a glance
| Combo RV Slide Out Seal 018-312-EKD & 018-341 EK | 018-312-EKD 018-341-EK 2 in 1 RV Slide Out Seal | |
|---|---|---|
| Price | USD 63.99 | USD 65.99 |
| Part numbers | 018-312-EKD & 018-341 EK | 018-312-EKD & 018-341-EK |
| Length | 35' for each piece | 35' for each piece |
| Color | Black | Black |
| After-sales | Money back or replacement (buyer's choice) | Money back or replacement (buyer's choice) |
Where each product wins
The Combo kit wins on price, with the lower listed price of the two. The 2 in 1 kit wins if you prefer seeing '2 in 1' in the product name, because that phrase makes the two-piece structure explicit. There are no other meaningful differences between the kits.
Product notes
#### Combo RV Slide Out Seal 018-312-EKD & 018-341 EK For RV Camper Slideout System
The Combo version is the product to choose when you want the model numbers spelled out in the name: 018-312-EKD and 018-341 EK. It's a two-piece set. Installation follows the intended sequence: remove the tape from the 018-341 EK seal, slide the 018-312-EKD D seal onto the base track, and screw the rubber into place. The real limitation is fit confirmation: even though the product name says combo, you need to verify that the model number, part number, and photo match the seal you're replacing. If they line up, this is a complete, ready-to-install slide-out seal refresh.
#### 018-312-EKD 018-341-EK 2 in 1 RV Slide Out Seal For RV Camper Slideout System US
The 2 in 1 version makes its proposition obvious: two seals, one product. It's the same two-seal pairing as the Combo kit, delivered under a title that spells out the relationship. The installation routine is the same, with the D seal sliding onto the base track after you remove the tape. The limitation here is that the '2 in 1' wording is descriptive rather than a compatibility guarantee. You still need to confirm your existing slide-out seal matches the part numbers and photo before ordering. If it does, the 2 in 1 will deliver the same functional result, just under a different product name.
Final choice by use case
If you prefer a product title that says 'Combo' and still names both part numbers, order the Combo RV Slide Out Seal 018-312-EKD & 018-341 EK. If you want the phrase '2 in 1' to spell out the two-piece setup for you, order the 018-312-EKD 018-341-EK 2 in 1 RV Slide Out Seal. If you're on the fence, choose the Combo; it's the same pair, and its name is just as clear.

