Filter fire extinguisher cabinets
Fire extinguisher cabinet buying guide. How to pick the mounting style, finish and size.

Which mounting style do you need?
| Mounting | Pick it when | Potter Roemer Alta steel models | JL Industries Ambassador steel models |
|---|---|---|---|
| Recessed A fully recessed fire extinguisher cabinet box goes into the wall; a 1/2 in trim sits on the face | The wall is deep enough for the full box and you want the flattest finish | 7007, 7010, 7020, 7025 | C8115, C1815, C1015, C2015, C3015, C4015 (3/8 in flat trim) |
| Semi-recessed Part of a semi-recessed fire extinguisher cabinet sits in the wall; 2, 3 or 5 in trim | The wall is too shallow for a full recess | 7008, 7012, 7022, 7027, 7028 | Models ending in 6 (square trim), for example C1016 |
| Rolled radius Semi-recessed with a rounded 3 in trim | You want a softer edge in corridors | 7013, 7023 | Models ending in 7, 2 or 8 (2-1/2 to 4-1/2 in rolled trim), for example C1017 |
| Trimless Set before drywall; the frame is covered so only the door shows | New construction and the wall is not finished yet | 7021, 7026 | C8114, C1014, C2014 |
| Surface Hangs on the face of the wall | The wall cannot be cut, such as block, concrete or a rated wall you do not want to penetrate | 7009, 7024, 7029 | C8113, C1013, C2013, C3013, C4013 |
Recessed
Semi-recessed
SurfaceSteel, aluminum or stainless steel?
Both brands build each mounting style in three finishes. Within a brand, the box sizes and door styles are the same in each finish.
| Finish | Door and frame | Potter Roemer Alta | JL Industries |
|---|---|---|---|
| Steel | White powder coat | 7007 to 7029 | Ambassador (third digit 1, for example C1017) |
| Aluminum | Clear anodized aluminum | 7030 to 7049 | Academy (third digit 2, for example C1027) |
| Stainless steel | Type 304 stainless steel, #4 finish | 7050 to 7069 | Cosmopolitan (third digit 3, for example C1037) |
Steel
Aluminum
Stainless steelCabinet images courtesy of Potter Roemer.
Potter Roemer or JL Industries?
Both are commercial cabinets for the same jobs. The practical differences are the glazing and the door choices. Potter Roemer Alta glazed doors use tempered safety glass and come in six door styles. JL Industries fire extinguisher cabinets use clear acrylic glazing as standard, with clear safety glass, bronze or gray acrylic as options, and nine door styles, including Saf-T-Lok locking versions. Fire-rated versions are called FRC (Potter Roemer) and FX2 (JL Industries). If the specification names a brand or model, match it; if not, use the filters to compare prices for the size and mounting you need.
What size fire extinguisher cabinet do you need?
Size the cabinet to the extinguisher it will hold, then check the exact extinguisher model on the cabinet submittal. The fire extinguisher cabinet dimensions below are inside box sizes. Potter Roemer builds the Alta cabinets around four inside box sizes, the same in steel, aluminum and stainless steel:
| Inside box (in) | Typical extinguisher | Potter Roemer Alta steel models |
|---|---|---|
| 9 x 18 x 5 | Up to 2.5 lb | 7007, 7008 |
| 9 x 24 x 5 | Up to 5 lb | 7010, 7012, 7013 |
| 9 x 24 x 5-3/4 | Up to 10 lb | 7020, 7021, 7022, 7023 |
| 12 x 27 x 8 | Up to 20 lb | 7025, 7026, 7027, 7028 |
Surface cabinets are listed by outside size. The 7009 is 11-1/2 x 20-1/2 x 5-3/4 in, for up to 5 lb. The 7024 is 11-1/2 x 26-1/2 x 5-3/4 in, for up to 10 lb. The 7029 is 14-1/2 x 29-1/2 x 8 in, for up to 20 lb. Check the exact extinguisher model against the Potter Roemer submittal, which also lists rough openings.
JL Industries cabinets are numbered by tub size (the first two digits):
| JL model group | Inside tub (in) | Holds |
|---|---|---|
| 81xx | 9 x 18 x 5-1/2 | 2.5 to 6 lb |
| 18xx | 10-1/2 x 24 x 5-1/2 | 2.5 to 6 lb |
| 10xx | 10-1/2 x 24 x 6 | 2.5 to 10 lb |
| 20xx | 12 x 27 x 7-3/4 | Up to 20 lb |
| 30xx | 16 x 32 x 7-3/4 | Up to 20 lb, larger tub |
| 40xx | 20 x 27 x 7-3/4 | Two extinguishers |
Sizes are from the JL Industries Ambassador data sheet; confirm rough openings on the submittal for the series you choose.

