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