Buy ‘filter’ with Bitcoin Crypto-Currency – Spendabit

DV /DT output filter NEMA 3R

$1,091 at EcoDirect

16-Inch Above Ground Swimming Pool Sand Filter System with 0.75 HP Pump - 16"

$723 at Overstock.com

12-Inch Above Ground Swimming Pool Sand Filter System with 0.25 HP Pump - 12"

$438 at Overstock.com

16-Inch Top Mount Swimming Pool Sand Filter with 6-Way Valve - 16"

$347 at Overstock.com

32.75" Swimming Pool Replacement Filter Cartridge

$289 at Overstock.com

MSR Autoflow XL Gravity Water Filter – 10L

$228 at Benny's Boardroom

25.5" Swimming Pool Replacement Filter Cartridge

$243 at Overstock.com

Platypus Gravity Works 4L Water Purifying Filter

$225 at Benny's Boardroom

Panasonic Replacement Air Filter - ETEMF320

3M HCMAP002 High Clarity Privacy Filter for 27" Apple iMac

Katadyn Hiker Pro Water Filter – Transparent

$154 at Benny's Boardroom

PF24.0W9 Privacy Filter Black

$110 at Tietokonekauppa.fi

Fellowes Privascreen™ Blackout Privacy Filter - 24.0" Wide

MSR Thru-Link Inline Micro Water Filter

$91.20 at Benny's Boardroom

Katadyn BeFree AC Water Filter w/ Soft Flask – 1L – Slate Blue

$96.05 at Benny's Boardroom

Kensington MagPro Privacy Screen Filter - For 23" Widescreen LCD Monitor - 16:9

MSR Trail Shot Pocket Sized Water Filter

$116 at Benny's Boardroom

PF23.0W9 Privacy Filter Black

$106 at Tietokonekauppa.fi

Katadyn BeFree AC Water Filter w/ Soft Flask – 1L – Black

$112 at Benny's Boardroom

BUNN Paper Filter

$96.96 at Newegg

22 Monitor Privacy Filter

$94.99 at Newegg

GE MWF Refrigerator Water Filter Compatible by BlueFall

$108 at Overstock.com

iSpring 10''x2.5'' Sediment Filter Replacement Cartridges (Case of 50)

$90.72 at Overstock.com

Fellowes Blackout Privacy Filter, 23.8", Black 4816901

iSpring 10''x2.5'' Sediment Filter Replacement Cartridges (Case of 50)

$93.07 at Overstock.com

iSpring Countertop Multi Filtration Drinking Water Filter System

$70.29 at Overstock.com

BUNN 20132.0000 Commercial Coffee Filters

StarTech 23.6" 16:9 Computer Monitor Privacy Screen Filter 23669PRIVACYSCREEN

$79.99 at Newegg

GE MWF Refrigerator Water Filter Compatible by BlueFall

$66.72 at Overstock.com

Platypus DayCap In-Bottle Filter – Blue

$82.04 at Benny's Boardroom

True HEPA Replacement Compatible with Rabbit Air MinusA2 Filter Kit, Germ - White

$60.29 at Overstock.com

LivePure True HEPA Replacement LP-HF550 Filter for Bali Series Air Purifiers LP550TH, LP550THP

$70.20 at Overstock.com

3M Bright Screen Privacy Filter for Dell Latitude 9510 BPNDE002

$78.60 at Newegg

Platypus DayCap Replacement Filter – Blue

$59.59 at Benny's Boardroom

iFi LAN iSilencer | Ethernet Noise Filter

$89.00 at Bloom Audio

Steripen FitsAll Water Filter

$56.05 at Benny's Boardroom

3M Bright Screen Privacy Filter for Select 13" Dell Laptops 3:2 Aspect BPNDE005

$63.99 at Newegg

Optimus U33100 Humidifier Replacement Wick Filter for U-33100

$78.99 at Newegg

Laser 48021 Fuel Filter Fits Stihl 1115-350-3503 1115 350 3503

$74.99 at Newegg

Fellowes True HEPA Filter with AeraSafe Antimicrobial Treatment

$46.99 at Newegg

3M Bright Screen Privacy Filter for Apple MacBook Pro 16 16:10 BPNAP005

$62.99 at Newegg

HOOVER 40140201 1 Pack Long-Life HEPA Cartridge Filter

$43.99 at Newegg

Katadyn BeFree AC Carbon Replacement Water Filters – 3pcs

$48.37 at Benny's Boardroom

FELLOWES 9287001 HEPA Filter with AeraSafe Antimicrobial Treatment for AeraMax 100 Air Purifier

$41.99 at Newegg

Anti-glare Filter for 24IN WS

$67.99 at Newegg

StarTech 16" MacBook Pro 21/23 Privacy Screen Filter 16M21PRIVACYSCREEN

$55.99 at Newegg

StarTech 13" Magnetic Privacy Filter for MacBook PRIVSCNMAC13

$42.99 at Newegg

LifeStraw Go 2.0 Replacement 2-Stage Replacement Filter – White

$38.58 at Benny's Boardroom

iSpring Countertop Multi Filtration Drinking Water Filter System

$37.52 at Overstock.com

Kaz HRF-F1 Replacement Filter

$40.99 at Newegg

Epson America V13H134A45 Replacement Air Filter

$43.99 at Newegg

4" Aroma Basket Filter

$50.60 at StillDragon

BNX 16x25x1 MERV 13 Pleated Air Filter - Made in USA - Electrostatic Charged HVAC AC Furnace Filters - Removes Pollen, Mold, Bacteria, Smoke (4 Pack)

$45.99 at Newegg

3M Bright Screen Privacy Filter for 14in Full Screen Laptop 16:10 BP140W1E

$56.99 at Newegg

3M Bright Screen Privacy Filter for 16in Laptop 16:10 BP160W1B

$64.99 at Newegg

3M Bright Screen Privacy Filter for 15.6" 16:10 Aspect Dell Laptops BPNDE003

$61.99 at Newegg

Turonic 4-in-2 Replacement Filter for Air Purifier for Home Turonic PH950 - with True HEPA13 Filter, Cotton filter, Activated Carbon and Cold Catalyst filter

$59.99 at Newegg

Filter-Monster True HEPA Replacement for Holmes HAPF600 Console Allergen Remover Filter, 2 Pack - White

$29.49 at Overstock.com

FlowXtreme Cotton Tails Filter Media 0.75-lbs (Replaces 25-lbs. Sand) - Multi

$38.49 at Overstock.com

Drinkpod Alkaline Water Pitcher 2.5L Capacity Includes 3 Filters

$36.94 at Overstock.com