
Filter Pump
A division of Finish Thompson — filter chambers, Penguin Series vertical pumps, complete filter systems, and metal-free filtration media for corrosive plating and process solutions.
Filter Pump, a division of Finish Thompson, makes filter chambers, Penguin Series vertical pumps, complete filter systems, and metal-free filtration media for corrosive plating and process solutions. Chambers handle alkaline or acidic solutions to 230F at up to 200 GPM. The P Series pump (CPVC/PP/PVDF) is rated to 280F; the 316SS PS suits caustics and chlorinated solvents.
What LibertyCES specifies from Filter Pump

Cartridge, bag, and carbon chambers for alkaline/acidic solutions up to 230°F — no metal-to-liquid contact, flow to 200 GPM.

Same family, meaningfully different envelopes by material: P Series 280°F (CPVC/PP/PVDF) vs. PS 316SS -30°F to 211°F for caustics and chlorinated solvents.

ASF to 3,400 GPH; MF acid/alkaline systems handle precious metal plating, high chloride, sulfuric, and alkaline cyanide solutions.
Filter Pump — Real Catalog Spec Data
| Product Line | Model | Category | Material | Size / Capacity | Temp Rating |
|---|---|---|---|---|---|
| C Filter Chambers | 3C/4C/6C/8C/12C | Filter Chamber | PP, CPVC, or PVDF | 1-10in to 12-40in cartridges, flow to 200gpm | 230F (110C) |
| CB Bag Filter | CB Series | Filter Chamber | CPVC + FKM elastomers | operates at higher temps and/or 100psi ambient | 230F (110C) |
| CBK Bag Chamber | CBK Series (#1/#2) | Filter Chamber | CPVC, PP, or PVDF | sizes #1 and #2, flow to 100gpm | 230F (110C) |
| CN In-Tank | 3CN/4CN | Filter Chamber | CPVC | 1-10in to 12-40in cartridges, flow to 200gpm | 230F (110C) |
| CT Carbon Treatment | CT Series | Filter Chamber | PP, CPVC, or PVDF | 5-60lbs GAC, flow to 36gpm | 230F (110C) |
| MR-SR Metal Recovery Chamber | MR/SR | Filter Chamber | ion exchange resin | recovers up to 3 troy oz precious metal per lb | n/a |
| MTD Magnetic | MTD-1/8 through MTD-10 | Pump | n/a | sealless mag-drive horizontal centrifugal, SG to 1.8, carbon bushings | n/a |
| P Vertical Pump | P Series | Pump | CPVC, PP, or PVDF | handles corrosive/slurry/abrasive solutions | 280F |
| PHF Vertical Pump | PHF Series | Pump | CPVC | double impeller, self-priming, 0-14 pH | 180F |
| PS Stainless Steel Vertical Pump | PS Series | Pump | 316 Stainless Steel | one moving part, in-tank mount only | -30F to 211F (250F non-caustic) |
| PX Extended | PX-1.5/2/3/5/7.5/10/15 | Pump | CPVC with PTFE wear ring or CPVC with PVDF impeller | double impeller, self-priming, 0-14 pH | 180F |
| A InTank Pump/Outside Chamber | A Series | Filter System | n/a | independent pump+chamber units, minimal floor space | n/a |
| AA & AB In/OutTank | AA/AB Series | Filter System | n/a | portable, metal-free, ACME-threaded heads | n/a |
| ASF InTank Suction | ASF Series | Filter System | CPVC, PP, or PVDF | 1 or 2 filters, flow to 3400 GPH | n/a |
| BF Bag Filtration System | BF Series | Filter System | n/a | 7in x 16in bag, quick-disconnect | n/a |
Sourced from Filter Pump's own catalog documentation.
Related Manufacturers & Products
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The Finish Thompson MSDB pump-review checklist: carbon-bushing run-dry limits, NPSH margin and the suction-piping rules that decide pump life.

Enter flow, head, SG and plant air. See the air pressure and SCFM your duty needs on a real FTI Air FT30P curve, then get the worksheet by email.
Frequently Asked Questions
What is the difference between Filter Pump P, PHF, and PS vertical pumps?
The P Series (CPVC/PP/PVDF) is rated to 280°F. PHF and PX are CPVC-only, rated to 180°F, with double-impeller self-priming and no seals/bushings to wear. PS is 316 stainless steel, rated -30°F to 211°F, built for cleaners, caustics, and chlorinated solvents.
What is the MR-SR Metal Recovery Chamber used for?
It recovers precious metals — up to 3 troy oz per pound of ion exchange resin — from rinse water and drag-out tanks in plating operations, and also improves rinse-water purity for reuse.
What micron range do Filter Pump pleated filters cover?
50-micron nominal down to 0.10 micron absolute, with DOE or SOE end caps and no surfactants or binders that could break down, leach, or migrate into the process fluid.
Get the right filter chamber or pump for your process solution
Ready to buy or need a fast answer? Call, text, or email James directly — (559) 395-5500 · [email protected].
Filter Pump models in the LibertyCES catalog
29 models across 29 product lines. For most models that state them (the middle 80%): flow 36–200 gpm (8,200–45,400 L/h); temperature to 280°F (138°C). Extremes are in the table.
| Model / line | Type | Size / capacity / flow | Pressure | Temperature | Wetted material | Source |
|---|---|---|---|---|---|---|
| C Filter Chambers 3C/4C/6C/8C/12C | Filter Chamber | 200 gpm | to 230 °F (to 110 °C) | PP, CPVC, or PVDF | Filter Pump — Full Product Line | |
| CB Bag Filter CB Series | Filter Chamber | operates at higher temps and/or 100psi ambient | 100 psi (6.9 bar) | to 230 °F (to 110 °C) | CPVC + FKM elastomers | Filter Pump — Full Product Line |
| CBK Bag Chamber CBK Series (#1/#2) | Filter Chamber | 100 gpm | to 230 °F (to 110 °C) | CPVC, PP, or PVDF | Filter Pump — Full Product Line | |
| CN In-Tank 3CN/4CN | Filter Chamber | 200 gpm | to 230 °F (to 110 °C) | CPVC | Filter Pump — Full Product Line | |
| CT Carbon Treatment CT Series | Filter Chamber | 36 gpm | to 230 °F (to 110 °C) | PP, CPVC, or PVDF | Filter Pump — Full Product Line | |
| MR-SR Metal Recovery Chamber MR/SR | Filter Chamber | recovers up to 3 troy oz precious metal per lb | ion exchange resin | Filter Pump — Full Product Line | ||
| MTD Magnetic MTD-1/8 through MTD-10 | Pump | sealless mag-drive horizontal centrifugal, SG to 1.8, carbon bushings | n/a | Filter Pump — Full Product Line | ||
| P Vertical Pump P Series | Pump | handles corrosive/slurry/abrasive solutions | to 280 °F (to 138 °C) | CPVC, PP, or PVDF | Filter Pump — Full Product Line | |
| PHF Vertical Pump PHF Series | Pump | double impeller, self-priming, 0-14 pH | to 180 °F (to 82 °C) | CPVC | Filter Pump — Full Product Line | |
| PS Stainless Steel Vertical Pump PS Series | Pump | one moving part, in-tank mount only | -30–211 °F (-34–99 °C) | 316 Stainless Steel | Filter Pump — Full Product Line | |
| PX Extended PX-1.5/2/3/5/7.5/10/15 | Pump | double impeller, self-priming, 0-14 pH | to 180 °F (to 82 °C) | CPVC with PTFE wear ring or CPVC with PVDF impeller | Filter Pump — Full Product Line | |
| A InTank Pump/Outside Chamber A Series | Filter System | independent pump+chamber units, minimal floor space | n/a | Filter Pump — Full Product Line | ||
| AA & AB In/OutTank AA/AB Series | Filter System | portable, metal-free, ACME-threaded heads | n/a | Filter Pump — Full Product Line | ||
| ASF InTank Suction ASF Series | Filter System | 56.7 gpm | CPVC, PP, or PVDF | Filter Pump — Full Product Line | ||
| BF Bag Filtration System BF Series | Filter System | 7in x 16in bag, quick-disconnect | n/a | Filter Pump — Full Product Line | ||
| CTM & CTL Carbon Treatment CTM/CTL Series | Filter System | single or dual-chamber with slurry tank, 1-3 micron pre-coat | n/a | Filter Pump — Full Product Line | ||
| Metal Recovery System MR/SR | Filter System | recovers up to 3 troy oz/lb, lab to 400gal tanks | ion exchange resin | Filter Pump — Full Product Line | ||
| MF Magnetic Drive Pump/Chamber System MF/MFDB Series | Filter System | compact or high-volume/high-pressure castered | CPVC or PP chamber, PP pump | Filter Pump — Full Product Line | ||
| PES Penductor System PES Series | Filter System | circulates 4-5 gal solution per gal pumped | n/a | Filter Pump — Full Product Line | ||
| PGG Pressure Gauge & Guard PGG Series | Accessory | 0-30/0-60/0-100/0-160 PSIG ratings | 0–160 psi (0–11 bar) | n/a | Filter Pump — Full Product Line | |
| SM Spacemaker SM Series | Filter System | ultra-compact, portable, leakproof | CPVC or PP chamber, PP or PVDF pump | Filter Pump — Full Product Line | ||
| PE Penductor PE Series (3/8in/3/4in/1in) | Mixer/Agitator | fluid sparging eductor, 3 sizes | to 280 °F (to 138 °C) | PVDF | Filter Pump — Full Product Line | |
| PM Tank-Drum Mixers PM Series | Mixer/Agitator | for tanks and drums | 316SS or PP (metal-less option) | Filter Pump — Full Product Line | ||
| Carbon Filter Cartridges PLC/M/C/CP/GC styles | Filtration Media | 2.5 gpm | cellulose/polyolefin/polyethylene/paper/coconut carbon variants | Filter Pump — Full Product Line | ||
| Fill Media GAC/Clay/Zeolite/Oil Retention | Filtration Media | organics removal / heavy metal adsorption / oil retention | n/a | Filter Pump — Full Product Line | ||
| Mesh Filter Bag n/a | Filtration Media | for solvents and hydrocarbons | Nylon monofilament | Filter Pump — Full Product Line | ||
| Oil Absorption Filter Bag n/a | Filtration Media | >90% oil removal efficiency, acid/alkaline-proof | Melt-blown Polypropylene | Filter Pump — Full Product Line | ||
| Pleated Filters PP Series | Filtration Media | 50-micron nominal to 0.10 micron absolute, DOE/SOE end caps | Polypropylene, Nylon, or PTFE | Filter Pump — Full Product Line | ||
| String Wound PF Series | Filtration Media | n/a | PP/cotton/rayon/polyester/nylon/modacrylic/glass fiber wind; PP/steel/304SS/316SS core | Filter Pump — Full Product Line |
This table is part of the equipment catalog dataset (CSV and JSON).
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Reviewed by James Riggins, 30+ years specifying water and chemical process equipment · Updated