Three pan collars are live here today, and two of them publish an offset figure: 1 inch and 2 inches, both at $3.43. The third is listed as flexible and costs $29.96. Which one you order turns on a single measurement, and on whether you are in a position to take it yet.
The short version
If the centre of your waste pipe sits about 25mm off the bowl's outlet, the 1-inch collar is the one. About 51mm off, take the 2-inch. If the old bowl is still bolted down and you cannot get a tape on the pipe until it comes out, the flexible collar is the one that does not lock you into a fixed offset before you have the number.
Two collars, one price, different offsets
| Collar | Published offset | Published size | Price |
|---|---|---|---|
| Pan Collar 1" | 1 inch, about 25mm | 100mm x 4" x 1" | $3.43 |
| Pan Collar 2" | 2 inches, about 51mm | 100mm x 4" x 2" | $3.43 |
2 fixed-offset pan collars live in /collections/plumbing-fittings-valves, censused 07-09-2026. Store-wide the set is 3 listings, all ACTIVE: productsCount returns 3 for a title match on 'collar' and 3 for a full-text match, so nothing is hiding outside the collection.
Same price, same 100mm body, same 4-inch connection. What separates them is how far the collar shifts the connection sideways. An inch is 25.4mm and two inches is 50.8mm, so in the units your pipe was set out in, that is a 25mm collar and a 51mm collar.
What does a pan collar actually do?
It joins the toilet bowl's outlet to the waste pipe. Both sized listings here describe it as a 'Pan Collar / WC Connector for Toilet Bowl', and the inch figure in the name is how far it moves that joint sideways: 1 inch or 2 inches.
Do both sized pan collars cost the same?
Yes. Pan Collar 1 inch and Pan Collar 2 inch are both $3.43 as at 7 September 2026, so nothing about choosing between them is a budget decision. Match the offset and the price looks after itself.
A collar moves 25 or 51mm, not 160
| Trap | Figures published on live toilet bowls | Where they cluster |
|---|---|---|
| S-trap | 140, 145, 150, 200, 225, 250, 260, 300mm | 250mm on 13 listings, 150mm on 11 |
| P-trap | 180, 185, 195mm | 180mm on 11 of the 13 |
52 live toilet bowls in /collections/toilet-bowl, censused 07-09-2026. 28 of the 52 print a numeric figure, carrying 11 distinct values between 140mm and 300mm. 52 = 54 in the collection less 2 draft, and reconciles by vendor as SANITON 25 + VERA 12 + Aalto 9 + Baron 6.
That is 160mm between the smallest and largest figure on the store's own bowls. A pan collar covers 25mm or 51mm of it. The collar closes a small gap between a bowl you have already chosen and the pipe you already have. It is not a way to make any bowl fit any set-out, and the figure printed on the bowl's listing is what settles that. Our guide to checking the trap and set-out with a tape covers how to read it off the pipe.
Which is where the Flexible Pan Collar at $29.96 earns its place. The two sized collars ask you to know the offset before you order. The flexible one does not, and that is what makes it the collar to put in the cart while the old bowl is still in place and the pipe is still buried.
Can a pan collar fix a 100mm set-out mismatch?
No, and a larger collar will not change that. The two fixed collars publish offsets of 1 inch and 2 inches, roughly 25mm and 51mm. The live toilet bowls here publish S-trap figures between 140mm and 300mm, so a 100mm mismatch is a different bowl rather than a different collar.
The two fields that decide it
| Read this | On which listing | What it settles |
|---|---|---|
| Trap type, S or P | the toilet bowl | whether the waste leaves through the floor or the wall |
| Set-out figure in mm | the toilet bowl | the distance the bowl is built for |
| Offset in inches | the pan collar | how far the collar moves the joint |
| Body size in mm | the pan collar | that the collar suits a 100mm waste |
Field labels as they appear on live listings here, checked 07-09-2026. Baron prints 'Set Out Distance', SANITON prints 'Rough-In', and Aalto prints 'roughing-in'. Three labels, one measurement, which is why a search for one wording misses the other two.
The trap letter comes first because it decides the direction, not the distance. VERA's A.032T puts it plainly in its own listing: an S-trap discharges through the floor, a P-trap through the wall. Get that wrong and no collar in the catalogue helps.
Which listings are easiest to check for a set-out figure?
Baron's. All 6 live Baron toilet bowls print one: BAV800 at 145mm and 260mm, BAW898, BAW888 and BAW818 at 150mm and 250mm, and both BAW203A listings at 150mm and 260mm. Across the whole collection, 28 of the 52 live bowls print a numeric figure.
$3.43 against a $128 bowl
| Line on the order | Price |
|---|---|
| Pan Collar 1" | $3.43 |
| Pan Collar 2" | $3.43 |
| Flexible Pan Collar | $29.96 |
| Cheapest live toilet bowl, SANITON LOTUS ST2322 | $128.00 |
| Dearest live toilet bowl, VERA C.032MB | $900.00 |
Prices pulled live on 07-09-2026 and they can change; the product page carries the current figure. The bowl floor and ceiling were established by censusing all 52 live listings with price bands rather than reading the top and bottom of a sorted page.
The collar is the smallest line on a toilet order and the one that decides whether the bowl seats on the day. Two of the 52 live bowls name a connector in their own parts list: SANITON INDICA ST2999 and SANITON MELISSA ST2452 both print 'PCS4 Straight Pan Connector'. Read the parts line on whichever bowl you are buying before you decide the collar is a separate line item.
Which pan collar goes in the cart if I have not measured yet?
The Flexible Pan Collar at $29.96. The 1-inch and 2-inch collars at $3.43 each are the right buy once you know the offset, and the flexible one is what covers you while the old bowl is still in place.
Related guides
S-trap or P-trap: how to check your toilet's roughing-in before you order online and Angle valve or two-way stop valve: which one each fixture needs.