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About Air Filter Efficiency Ratings
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Prefilter Panel Air Filters
These filters are an economical choice for protecting more expensive filters that catch finer particles. They are typically used as replacement prefilters in HVAC equipment.
They meet UL 900 flame retardance requirements. Actual size is up to 5/8" less than trade size.
Don’t see the size you need? Additional sizes are available.
| Trade Size | MERV Filter Rating | Material | Frame Material | Max. Temperature, °F | Pkg. Qty. | Pkg. | |
1/2" Thick | |||||||
|---|---|---|---|---|---|---|---|
| 7 3/16 × 9 11/16 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 000000 |
| 7 3/8 × 16 1/2 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 8 × 8 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 8 × 10 3/8 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 8 3/8 × 11 1/4 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 8 × 22 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 9 3/8 × 16 1/2 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 10 1/2 × 12 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 10 1/2 × 14 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 11 3/4 × 13 1/2 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 12 × 12 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 12 × 20 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
1" Thick | |||||||
| 6 × 6 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 7 × 7 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 8 × 8 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 10 × 10 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 10 × 16 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 10 × 20 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 10 × 24 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 10 × 25 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 10 × 30 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 12 × 12 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 12 × 18 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 12 × 20 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 12 × 24 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 12 × 25 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 12 × 30 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 12 × 36 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 14 × 14 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 14 × 18 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 14 × 20 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 14 × 24 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 14 × 25 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 14 × 30 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 15 × 20 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 15 × 25 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 15 × 30 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 16 × 16 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 16 × 20 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 16 × 24 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 16 × 25 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 16 × 30 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 16 × 32 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 18 × 18 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 18 × 20 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 18 × 22 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 18 × 24 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 18 × 25 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 18 × 30 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 18 × 36 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 19 × 27 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 20 × 20 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 20 × 22 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 20 × 24 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 20 × 25 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 20 × 30 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 20 × 32 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 20 × 36 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 22 × 22 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 24 × 24 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 24 × 30 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 25 × 25 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
2" Thick | |||||||
| 10 × 10 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 10 × 20 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 10 × 24 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 12 × 12 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 12 × 24 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 14 × 20 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 14 × 25 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 15 × 20 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 16 × 20 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 16 × 24 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 16 × 25 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 18 × 24 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 20 × 20 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 20 × 24 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 20 × 25 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 24 × 24 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 00000000 | 00000 |
| 25 × 25 | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
Made-to-Order Prefilter Panel Air Filters
Minimum filter size is 4" × 4". Maximum filter size is 23" × 30". Multiply the length × width to determine square inches. Then, see size ranges for pricing.
These filters are an economical choice for protecting more expensive filters that catch finer particles. They are typically used as replacement prefilters in HVAC equipment.
They meet UL 900 flame retardance requirements.
Also Available: Filters larger than 23" × 30". Please ask for 3884T999 and specify material, thickness, actual length, and actual width.
| Size Range, sq. in. | MERV Filter Rating | Material | Frame Material | Max. Temperature, °F | Pkg. Qty. | Pkg. | |
1" Thick | |||||||
|---|---|---|---|---|---|---|---|
| 16-149 sq. in. | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 000000 |
| 150-199 sq. in. | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 200-249 sq. in. | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 250-299 sq. in. | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 300-399 sq. in. | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 400-499 sq. in. | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 500-599 sq. in. | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 600-690 sq. in. | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
2" Thick | |||||||
| 16-149 sq. in. | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 150-199 sq. in. | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 200-249 sq. in. | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 250-299 sq. in. | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 300-399 sq. in. | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 00000 |
| 400-499 sq. in. | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 000000 |
| 500-599 sq. in. | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 000000 |
| 600-690 sq. in. | Not Rated | Fiberglass | Cardboard | 180° | 12 | 0000000 | 000000 |
Large-Particle Suction Strainers
- For Use With: Water
- Max. Temp.: Not Rated
Strainers have a heavy duty construction to withstand a high suction force and wide openings to trap large debris. Commonly used with reservoirs and tanks, they filter particles before they enter your system.
NPSM (National Pipe Straight Mechanical) threads and NPS (National Pipe Straight) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
With Threaded Pipe Connection
A
B
C
D
E
| Pipe Size | Thread Type | Gender | Ht. | Dia. | Screen Material | Screen Opening Size | Each | ||
Zinc-Plated Steel Connection | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| A | 3/4 | NPS | Female | 6 1/4" | 1 5/8" | Zinc-Plated Steel | 3/16" | 0000000 | 000000 |
| A | 1 | NPS | Female | 7 1/8" | 1 5/8" | Zinc-Plated Steel | 3/16" | 0000000 | 00000 |
| A | 1 1/2 | NPSM | Female | 4 5/8" | 5" | Zinc-Plated Steel | 3/8" | 000000 | 00000 |
| A | 1 1/2 | NPSM | Female | 6 15/16" | 2 1/4" | Zinc-Plated Steel | 3/8" | 0000000 | 00000 |
| A | 2 | NPSM | Female | 4 5/8" | 6" | Zinc-Plated Steel | 3/8" | 000000 | 00000 |
| A | 2 | NPSM | Female | 7 1/8" | 2 3/4" | Zinc-Plated Steel | 3/8" | 0000000 | 00000 |
| A | 2 1/2 | NPSM | Female | 4 1/8" | 5 15/16" | Zinc-Plated Steel | 3/8" | 000000 | 00000 |
| A | 3 | NPSM | Female | 5 5/8" | 7" | Zinc-Plated Steel | 3/8" | 000000 | 00000 |
| A | 3 | NPSM | Female | 9 7/8" | 4" | Zinc-Plated Steel | 3/8" | 0000000 | 00000 |
| A | 4 | NPSM | Female | 5 5/8" | 7" | Zinc-Plated Steel | 3/8" | 000000 | 00000 |
| A | 4 | NPSM | Female | 9 7/8" | 5" | Zinc-Plated Steel | 3/8" | 0000000 | 00000 |
| A | 6 | NPSM | Female | 9 5/8" | 9" | Zinc-Plated Steel | 1" | 000000 | 00000 |
| A | 8 | NPSM | Female | 11 7/16" | 11 1/16" | Zinc-Plated Steel | 1" | 000000 | 000000 |
| B | 2 | NPSM | Female | 4 3/16" | 5" | Zinc-Plated Steel | 1" | 0000000 | 00000 |
| B | 3 | NPSM | Female | 5 1/16" | 6" | Zinc-Plated Steel | 1 1/2" | 0000000 | 00000 |
| B | 4 | NPSM | Female | 5 1/16" | 7" | Zinc-Plated Steel | 1 1/2" | 0000000 | 00000 |
| B | 6 | NPSM | Female | 10 1/8" | 9 3/16" | Zinc-Plated Steel | 2 1/2" | 0000000 | 000000 |
| C | 1 1/2 | NPSM | Female | 1 7/8" | 9 3/8" | Zinc-Plated Steel | 5/16" | 00000000 | 00000 |
| C | 2 | NPSM | Female | 1 7/8" | 9 3/8" | Zinc-Plated Steel | 5/16" | 00000000 | 00000 |
| C | 3 | NPSM | Female | 3 5/8" | 11 13/16" | Zinc-Plated Steel | 5/16" | 00000000 | 000000 |
| D | 1 1/2 | NPSM | Female | 2 7/16" | 9 3/8" | Zinc-Plated Steel | 3/8" | 00000000 | 00000 |
| D | 2 | NPSM | Female | 2 7/16" | 9 3/8" | Zinc-Plated Steel | 3/8" | 00000000 | 00000 |
304 Stainless Steel Connection | |||||||||
| A | 1 1/2 | NPSM | Female | 4 3/8" | 5" | 304 Stainless Steel | 3/8" | 0000000 | 00000 |
| A | 2 | NPSM | Female | 4 3/8" | 6" | 304 Stainless Steel | 3/8" | 0000000 | 000000 |
| A | 3 | NPSM | Female | 5 3/8" | 7" | 304 Stainless Steel | 3/8" | 0000000 | 000000 |
| A | 4 | NPSM | Female | 5 3/8" | 7" | 304 Stainless Steel | 3/8" | 0000000 | 000000 |
Polypropylene Plastic Connection | |||||||||
| E | 1 1/2 | NPT | Female | 3 1/2" | 4 7/8" | Polypropylene Plastic | 1/4" × 1" | 00000000 | 00000 |
| E | 2 | NPT | Female | 3 1/2" | 4 7/8" | Polypropylene Plastic | 1/4" × 1" | 00000000 | 00000 |
| E | 3 | NPT | Female | 5" | 7 1/8" | Polypropylene Plastic | 1/2" X 1 1/4" | 00000000 | 00000 |