When your RV slide-out lets in road noise, drafts, or dust, replacing the seal is usually the fix-and for many campers that means pairing the 018-312-EKD D-seal with the 018-341 EK base. Two listings offer this exact two-part setup, but they don't carry the same price tag: $53.00 versus $65.99. Both use the same part numbers, so the real question is whether the extra money buys anything useful. Before you order, let's sort out whether the cheaper combo is the obvious pick or whether the pricier 2-in-1 kit has a reason to exist.
Quick verdict
The RV Slide Out Seal Combo 018-312-EKD + 018-341 EK for RV Camper Slideout System is the better value. It includes the same 018-312-EKD and 018-341 EK seals with the same dimensions, the same black new rubber, and the same money-back-or-replacement after-sales promise as the 2 in 1 kit. The 2 in 1 RV Slide Out Seal is a fine alternative, but it doesn't give you a different or upgraded product.
Comparison table
| Product | Price | Seal Pair | Price Bar |
|---|---|---|---|
| RV Slide Out Seal Combo 018-312-EKD + 018-341 EK | USD 53.00 | 1″ x 15/16″ x 35′ + 1/2″ x 2.75″ x 35′ | |
| 018-312-EKD 018-341-EK 2 in 1 RV Slide Out Seal | USD 65.99 | 1″ x 15/16″ x 35′ + 1/2″ x 2.75″ x 35′ |
Both kits default to the same pair: a 1″ x 15/16″ x 35′ D-seal and a 1/2″ x 2.75″ x 35′ base, in black, new condition.
Where each product wins
RV Slide Out Seal Combo 018-312-EKD + 018-341 EK wins on price. It's the lower-priced of the two identical kits, with the same part numbers and after-sales policy.
018-312-EKD 018-341-EK 2 in 1 RV Slide Out Seal wins on ordering guidance. Its product description includes a note to verify the model number, part number, and photo match yours before purchase.
Product notes
RV Slide Out Seal Combo 018-312-EKD + 018-341 EK for RV Camper Slideout System
This combo gives you the essential two-piece setup: the 018-312-EKD D-seal slides onto the 018-341 EK base, then you screw the rubber into place. Both pieces are cut to 35-foot lengths, with the D-seal measuring 1″ x 15/16″ and the base 1/2″ x 2.75″. The tough rubber is designed to stand up to weather and noise while staying easy to clean. Each strip runs 35 feet, which means enough material for a full slide-out perimeter but also a long, unwieldy piece to handle during installation. For the buyer who needs the same part numbers as the pricier kit and wants the lower price, this is the straightforward choice.
018-312-EKD 018-341-EK 2 in 1 RV Slide Out Seal For RV Camper Slideout System US
This kit carries the same two seals with the same dimensions and black new rubber, so installation is identical. Its standout is the note that asks you to confirm your model number, part number, and photo match before ordering-a useful step for anyone unsure which slide-out seal their camper takes. The extra cost doesn't bring a different material, a longer strip, or additional pieces; you're paying for the same pair with more caution built into the ordering process. That makes it the pick if you want explicit guidance at checkout rather than hunting down the part numbers on your own.
Final choice by use case
Choose the RV Slide Out Seal Combo 018-312-EKD + 018-341 EK for RV Camper Slideout System if you've already confirmed your slide-out model and simply want the lowest price for the correct pair of seals. Choose the 018-312-EKD 018-341-EK 2 in 1 RV Slide Out Seal For RV Camper Slideout System US if you're less certain about your part numbers and want extra caution before you commit.
