| size | Standard | ||||
|---|---|---|---|---|---|
| inch | mm | ASA 150 | ANSI | DIN | JIS |
| 1" | 25 | PHFX-201 | PHFX-211 | PHFX-221 | PHFX-231 |
| 1.5" | 38 | PHFX-202 | PHFX-212 | PHFX-222 | PHFX-232 |
| 2" | 50 | PHFX-203 | PHFX-213 | PHFX-223 | PHFX-233 |
| 2.5" | 63 | PHFX-204 | PHFX-214 | PHFX-224 | PHFX-234 |
| 3" | 75 | PHFX-205 | PHFX-215 | PHFX-225 | PHFX-235 |
| 4" | 100 | PHFX-206 | PHFX-216 | PHFX-226 | PHFX-236 |
| 6" | 150 | PHFX-207 | PHFX-217 | PHFX-227 | PHFX-237 |
| 8" | 200 | PHFX-208 | PHFX-218 | PHFX-228 | PHFX-238 |
