When you're shopping for RV camper systems accessories, a worn slideout seal shows up as drafts, bugs, or water sneaking past the slide room. When you're replacing the 018-312-EKD D-seal and the 018-341-EK base seal, two options carry the same part numbers, the same black finish, and the same after-sales promise-money back or replacement. But they're priced $20 apart. The real decision isn't which seal to buy; it's which option to order.
Quick Verdict
Both options are new, black, two-piece slideout seal sets: the 018-312-EKD D-seal slides onto the 018-341-EK base seal. The cheaper option, at $65.99, calls itself a 2-in-1 set. The more expensive option, at $85.99, spells out Black RV Slide Out Seal in the title. If you're choosing based on price alone, the $65.99 set is the obvious pick. Choose the $85.99 option only if you want the longer descriptive title that names the RV Camper Slideout System before you order.
Side by Side
| Option | Listed Price | Title Highlights | Installation |
| Black RV Slide Out Seal 018-312-EKD & 018-341 EK for RV Camper Slideout System | USD 85.99 | Names "Black" and "RV Camper Slideout System" | Slide D-seal onto EK base, screw rubber into place |
| 018-312-EKD 018-341-EK 2 in 1 RV Slide Out Seal For RV Camper Slideout System US | USD 65.99 | Calls the pair "2 in 1" and includes "US" | Same slide-on installation |
Where Each Option Wins
- The $65.99 option wins on price: you get the same 018-312-EKD and 018-341-EK seals for less, and the title makes the two-in-one nature explicit.
- The $85.99 option wins on descriptive title: it includes "Black" and "RV Camper Slideout System," which can be helpful if you like to see the color and the system name in the headline. The trade-off is the higher price.
Product Notes
Black RV Slide Out Seal 018-312-EKD & 018-341 EK for RV Camper Slideout System - $85.99
This is the higher-priced option, and it's the one that puts the color first: "Black RV Slide Out Seal." The title also names both part numbers and the broader "RV Camper Slideout System" application. The after-sales promise is money back or replacement, which is the same as the cheaper set. If you're comparing descriptions side by side, the installation method is identical: slide the 018-312-EKD D-seal onto the 018-341-EK base and screw the rubber into place. The caveat is the higher price for the same two-piece seal setup.
018-312-EKD 018-341-EK 2 in 1 RV Slide Out Seal For RV Camper Slideout System US - $65.99
The "2 in 1" in the title tells you this is sold as a matched pair: the 018-312-EKD D-seal and the 018-341-EK base seal. At $65.99, it's the lower-priced set, and the included items are the same as the other option. The installation note is the same too: peel the tape from the 018-341-EK seal base, slide the D-seal on, and secure the rubber. What this option doesn't do is spell out the black finish in the title, so the name stays focused on the part numbers and the "2 in 1" setup. If you're confident about the part numbers and you want the lower price, this is the one to order.
Final Choice by Use Case
- Cheapest option for the same part-numbered pair: choose the $65.99 "2 in 1" set.
- More descriptive title, higher price: choose the $85.99 "Black RV Slide Out Seal" set if you want the headline to spell out the color and system.

