Option
Metal fitting
| Part number | Q'ty per package | Applicable products |
| FUSU-C2 | 4 pcs/set |
OFU-105H-AW OFU-110H-AW OFU-117H-AW |
Metal fitting is supplied with a nut and a clip.
Mounting stay
| Part number | Q'ty per package | Applicable product |
| OFU-ST01 | 4 pcs/set | OFU-105H-AW OFU-110H-AW OFU-117H-AW |
Prefilter set
Use of Prefilter is recommended where large particles are flying.
OFU-PFS01
| Part number | Q'ty per package | Applicable products |
| OFU-PFS01 | 2 pcs/set | OFU-102H-AW |
Replacement Prefilter
| Part number | Q'ty per package | Applicable products |
| OFU-PF01 | 10 pcs. | OFU-102H-AW |
OFU-PFS02
| Part number | Q'ty per package | Applicable products |
| OFU-PFS02 | 1 pc/set | OFU-105H-AW OFU-110H-AW OFU-117H-AW |
Replacement Prefilter
| Part number | Q'ty per package | Applicable products |
| OFU-PF02 | 5 pcs. | OFU-105H-AW OFU-110H-AW OFU-117H-AW |
The maximum air volume will decline as below by using the optional Prefilter.
| Part number | Without Prefilter | With Prefilter |
| OFU-102H-AW | 2.0 m3/min | 1.8 m3/min |
| OFU-105H-AW | 5.0 m3/min | 4.5 m3/min |
| OFU-110H-AW | 10.0 m3/min | 8.5 m3/min |
| OFU-117H-AW | 17.0 m3/min | 12.5 m3/min |
