Your camper's slide-out opening needs two pieces: a 018-312-EKD D seal and a 018-341 EK base seal. All four RV camper systems accessories in this comparison bundle both in one order, so you don't have to buy them separately. The parts share the same dimensions: the 018-312-EKD measures 1" x 15/16" x 35', and the 018-341 EK measures 1/2" x 2.75" x 35'. They are black and new in every case. That leaves the real decision to the title order and the listed price.
Quick take: If you want the lowest listed price, the Combo RV Slide Out Seal 018-312-EKD & 018-341 EK For RV Camper Slideout System at $50.00 is the straightforward pick. If you would rather see the 018-341 EK number appear first in the title, then the Combo RV Slide Out Seal 018-341 EK 018-312-EKD Fits RV Camper Slideout System at $63.99 gives you that order but at the highest listed price. The two $53.00 sets sit in between, and one of them adds a listed country of origin: China.
Listed-price comparison
| Product | Listed price | Price bar |
|---|---|---|
| Combo RV Slide Out Seal 018-341 EK 018-312-EKD Fits RV Camper Slideout System | USD 63.99 | |
| Combo RV Slide Out Seal 018-312-EKD & 018-341 EK For RV Camper Slideout System | USD 50.00 | |
| RV Slide Out Seal Combo 018-312-EKD + 018-341 EK for RV Camper Slideout System | USD 53.00 | |
| RV Slide Out Seal Combo 018-312-EKD + 018-341 EK for RV Camper Slideout System (Country of Origin: China) | USD 53.00 |
Decision matrix
| Decision scenario | Recommended combo | What stands out |
|---|---|---|
| Lowest listed price | Combo RV Slide Out Seal 018-312-EKD & 018-341 EK For RV Camper Slideout System | Same part dimensions for $50.00 |
| Title starts with 018-341 EK first | Combo RV Slide Out Seal 018-341 EK 018-312-EKD Fits RV Camper Slideout System | Product-name order matches a different reference style |
| Middle price, concise title | RV Slide Out Seal Combo 018-312-EKD + 018-341 EK for RV Camper Slideout System | $53.00 and the same dimensions |
| Middle price with origin detail | RV Slide Out Seal Combo 018-312-EKD + 018-341 EK for RV Camper Slideout System (Country of Origin: China) | $53.00 with an explicitly listed origin |
Product notes
Combo RV Slide Out Seal 018-341 EK 018-312-EKD Fits RV Camper Slideout System - USD 63.99
If the part-number order in the product name matters to you, this set leads with 018-341 EK before 018-312-EKD. The two seals still measure 1" x 15/16" x 35' and 1/2" x 2.75" x 35', and the product description covers sliding the D seal onto the base track and screwing it into place. It is black and new. The main thing to weigh here is the price: at $63.99 it is the highest listed price in this group. If that title order is what you need, this is the set to pick.
Combo RV Slide Out Seal 018-312-EKD & 018-341 EK For RV Camper Slideout System - USD 50.00
This is the set with the lowest listed price. It uses the same 018-312-EKD and 018-341 EK dimensions as the other combos, and the description explains the same installation idea: slide the D seal onto the base track and screw the rubber into place. The color and condition match the rest: black and new. Choose it when you want to spend the least for the same part sizes. The trade-off is that the title leads with 018-312-EKD, which may not match the order in which you have written down the part reference.
RV Slide Out Seal Combo 018-312-EKD + 018-341 EK for RV Camper Slideout System - USD 53.00
At $53.00, this combo sits at a middle listed price between the $50.00 and $63.99 options. The title spells out the two part numbers with a plus sign, and the description again talks about tough rubber, weather and corrosion resistance, easier cleaning, and a longer service life for the camper. Dimensions are the same as the other sets. It costs $3.00 more than the $50.00 option for the same listed dimensions, so that is the trade-off to weigh. The other $53.00 combo on this page carries the same main title and also includes a listed country of origin of China, so the main difference between the two mid-price options comes down to that one detail.
RV Slide Out Seal Combo 018-312-EKD + 018-341 EK for RV Camper Slideout System (Country of Origin: China) - USD 53.00
This is the second $53.00 set with the same product title, and its product details also state Country of Origin: China. The measurement pair is identical to the rest: 1" x 15/16" x 35' for the 018-312-EKD and 1/2" x 2.75" x 35' for the 018-341 EK. The description repeats the easy-installation wording along with weather, corrosion, and wear resistance. Choose this one when you would like the same mid-range price with an explicitly listed origin. The limitation is simply that the listed price is not the lowest in the group; the $50.00 set remains the lower-priced choice.
Final recommendation
For the least money, choose the $50.00 combo with 018-312-EKD first in the title. For a middle price and a concise title, the $53.00 basic combo works. For a middle price plus a stated origin, take the $53.00 combo that lists China. For a title order that starts with 018-341 EK, the $63.99 combo is the one to use.
