| size | Standard | ||||
|---|---|---|---|---|---|
| inch | mm | ASA 150 | ANSI | DIN | JIS |
| 1" | 25 | PHFX-101 | PHFX-111 | PHFX-121 | PHFX-131 |
| 1.5" | 38 | PHFX-102 | PHFX-112 | PHFX-122 | PHFX-132 |
| 2" | 50 | PHFX-103 | PHFX-113 | PHFX-123 | PHFX-133 |
| 2.5" | 63 | PHFX-104 | PHFX-114 | PHFX-124 | PHFX-134 |
| 3" | 75 | PHFX-105 | PHFX-115 | PHFX-125 | PHFX-135 |
| 4" | 100 | PHFX-106 | PHFX-116 | PHFX-126 | PHFX-136 |
| 6" | 150 | PHFX-107 | PHFX-117 | PHFX-127 | PHFX-137 |
| 8" | 200 | PHFX-108 | PHFX-118 | PHFX-128 | PHFX-138 |
