| size | Standard | ||||
|---|---|---|---|---|---|
| inch | mm | ASA 150 | ANSI | DIN | JIS |
| 1" | 25 | PHFX-301 | PHFX-311 | PHFX-321 | PHFX-331 |
| 1.5" | 38 | PHFX-302 | PHFX-312 | PHFX-322 | PHFX-332 |
| 2" | 50 | PHFX-303 | PHFX-313 | PHFX-323 | PHFX-333 |
| 2.5" | 63 | PHFX-304 | PHFX-314 | PHFX-324 | PHFX-334 |
| 3" | 75 | PHFX-305 | PHFX-315 | PHFX-325 | PHFX-335 |
| 4" | 100 | PHFX-306 | PHFX-316 | PHFX-326 | PHFX-336 |
| 6" | 150 | PHFX-307 | PHFX-317 | PHFX-327 | PHFX-337 |
| 8" | 200 | PHFX-308 | PHFX-318 | PHFX-328 | PHFX-338 |
