Three of the seven seat and cover listings sold on their own here name the bowl models they fit, and BAUF05 is listed for two: the W888 and the W818. Match the model code on your bowl against that list before you compare sizes. The bowl side helps too, because 8 of the 52 live toilet bowl listings print their seat's model code.
The short version
Match the bowl model before the size. As at 26-09-2026, BAUF05 at $68.67 is listed for the W888 and W818, BAUF06 at $61.80 for the V800, W888 and W818, and BA833 at $48.07 for the W203. Eight of 52 live toilet bowls print their seat's code as well, and four of those seats come only with the bowl.
Three of the seven cover listings name the bowls they fit
| Listing | What it is | Bowl models printed |
|---|---|---|
| BAUF05 | Seat cover | 'Used in models: W888 and W818' |
| BAUF06 | Seat cover | 'Used in models: V800, W888 and W818' |
| BA833 | Seat cover | 'Used in models: W203' |
| BAUF303 | Seat cover | - |
| ATV-8900 | Manual bidet seat and cover | - |
| FB-104 | Bidet seat cover | - |
| FB-106 | Bidet seat cover | - |
The 7 seat and cover listings sold on their own, censused 26-09-2026. Reconciles against 11 products with 'seat' in the title, all statuses = 10 ACTIVE + 1 DRAFT + 0 ARCHIVED: these 7, plus 3 active toilet bowls sold with their seat and 1 draft bowl.
Each model list points at bowls that are live here: the BAW888 and BAW818 at $427.50, the BAV800 at $326.25, and the BAW203A. The bowl listings confirm it from their side. BAW888 prints 'Urea Seat Cover - BAUF05 OR BAUF06', BAW818 prints BAUF05 and BAV800 prints BAUF06, so for a BAW818 the BAUF05 is named by both the cover and the bowl.
Which replacement seat cover fits a BAW888 toilet bowl?
Two covers name it. BAUF05 prints 'Used in models: W888 and W818' at 370 x 445 mm, and BAUF06 prints 'Used in models: V800, W888 and W818' at 366 x 452 mm. The BAW888 listing names the same pair: 'Urea Seat Cover - BAUF05 OR BAUF06'.
Four bowls print a seat you can only buy with the bowl
| Bowl listing | Seat code printed | Seat also sold on its own | Bowl price |
|---|---|---|---|
| BAW888 | BAUF05 or BAUF06 | Yes | $427.50 |
| BAW818 | BAUF05 | Yes | $427.50 |
| BAV800 | BAUF06 | Yes | $326.25 |
| BAW203A, Urea Seat BA833 | BA833 | Yes | $225.00 |
| BAW203A, Urea Seat BAUF203 | BAUF203 | No | $247.50 |
| SANITON INDICA ST2999 | SSC4599 soft close seat and cover | No | $160.00 |
| SANITON MELISSA ST2452 | SSC4599, with SSC4019 as an option | No | $230.00 |
| SANITON ROSELLE ST2457 (Manual Bidet Seat) | V8902 | No | $480.00 |
8 of the 52 active listings in /collections/toilet-bowl print a seat model code, censused 26-09-2026. 52 = 54 in the collection less 2 draft and 0 archived. 23 of the 52 mention a seat or seat cover in the description; the other 15 of those 23 do it without a code.
The four marked 'No' carry the seat inside the bowl listing. BAUF203 appears only in a BAW203A title, SSC4599 only in the parts lists of INDICA ST2999 and MELISSA ST2452, and V8902 only on the ROSELLE bidet-seat bowl. For those bowls the listing is the whole set. The BAW203A comes both ways: $225.00 with BA833 or $247.50 with BAUF203.
Which toilet bowls come with a seat cover included?
23 of the 52 live toilet bowl listings mention a seat or seat cover in the description as at 26 September 2026, and 8 of them name it by model code. INDICA ST2999 at $160.00 and MELISSA ST2452 at $230.00 both list SSC4599, a soft close seat and cover, among their parts.
Two covers listed for the W888 are 4 mm and 7 mm apart
| Seat cover | Size as printed | Closing | Bowl models printed |
|---|---|---|---|
| BA833 | 352 x 440 mm | 'Slow Closing Function' | W203 |
| BAUF06 | 366 x 452 mm | 'Slow Closing Function' | V800, W888, W818 |
| BAUF05 | 370 x 445 mm | 'Slow Closing Function' | W888, W818 |
| BAUF303 | 386 x 440 mm | 'Slow Closing Function' | - |
The 4 seat covers sold on their own, censused 26-09-2026, sizes quoted in the order each listing prints them. They are 4 of the 7 in the first table; the other 3 are the bidet seat listings.
BAUF05 and BAUF06 are both named for the W888, and their printed sizes differ by 4 mm on the first figure and 7 mm on the second. BA833 and BAUF303 share a 440 mm figure and sit 34 mm apart on the other. Size gets you close. The model list is the field the cover and the bowl listing both print, so order on that. All four print 'Slow Closing Function'.
What size is the BAUF05 seat cover?
BAUF05 prints 'Dimension : 370 x 445 mm' and 'Slow Closing Function', and lists 'Used in models: W888 and W818'. It is $68.67 as at 26 September 2026.
A replacement seat cover runs $48.07 to $68.67
| Listing | What it replaces | Price as at 26-09-2026 |
|---|---|---|
| BA833 | Seat cover, W203 | $48.07 |
| BAUF06 | Seat cover, V800, W888, W818 | $61.80 |
| BAUF303 | Seat cover | $61.80 |
| BAUF05 | Seat cover, W888, W818 | $68.67 |
| ATV-8900 | Manual bidet seat and cover | $218.25 |
| FB-104 | Bidet seat cover | $240.00 |
| FB-106 | Bidet seat cover | $240.00 |
The same 7 listings sold on their own, prices read live 26-09-2026; they can change, and the product page carries the current figure. Reconciles against 11 'seat'-titled products = 10 ACTIVE + 1 DRAFT + 0 ARCHIVED.
A plain seat cover is $48.07 to $68.67, and a bidet seat starts at $218.25 on ATV-8900. For a BAW818, order the BAUF05 Urea Seat Cover at $68.67 as at 26 September 2026: the cover lists the W818 and the bowl lists BAUF05. It is also one of the two covers named for the BAW888. The other is BAUF06 at $61.80, which lists the V800 too. The two versions of the BAW203A are $22.50 apart, $225.00 with BA833 and $247.50 with BAUF203.
How much does a replacement toilet seat cover cost?
Four seat covers sell on their own here, from $48.07 for BA833 to $68.67 for BAUF05, as at 26 September 2026. BAUF06 and BAUF303 are both $61.80. A bidet seat and cover starts at $218.25 on ATV-8900.
Related guides
How to check S-trap or P-trap before you order a bowl and rimless or rim, one-piece or two-piece.