Aqua-Pure 3MFF100 - Manual (Page 5)

1. Open faucet and turn off cold water supply to relieve pressure.
2. Select and mark a location under the sink that allows access
for filter change. You will be connecting to the existing line
with 3/8” tubing and various fittings not supplied with this
filter assembly.
3. Using filter head assembly as a guide, fasten filter head as-
sembly to wall with fasteners. (See Figure 2)
Allow 3” clearance from bottom of replacement fi lter for
ease of removal.
4. Place a basin or a towel under the cold water supply valve. Re-
move the cold side riser tubing between your cold water supply
valve to your primary faucet connection.
5. Install faucet adapter fitting (not included) to faucet stem.
This should be a snug fit. Do not overtighten. (See Figure
3) Ensure the black gasket is inserted into the faucet adapter
prior to assembly.
6. Install 3/8 NPT Fittings (Not Included) into filter head using
PTFE Tape. Do not overtighten.
7. Determine length of 3/8” tubing (not included) required from
filter head outlet to faucet adapter by holding tubing in place en-
suring it is of appropriate length. Do not kink tubing as this will
impede water flow. If necessary, loop tubing around to avoid it
being kinked. Cut tubing straight with a razor knife. (See Figure
4)
8. Insert 3/8” tubing from faucet adapter fitting into the filter
OUTLET fitting as shown in Figure 5.
9. Determine length of 3/8” tubing (not included) required from
filter head inlet to cold water supply valve by holding tubing in
place ensuring it is of appropriate length. Do not kink tubing as
this will impede water flow. If necessary, loop tubing around
to avoid it being kinked. Cut tubing straight with a razor knife.
(See Figure 4)
10. Using a tube ferrule, compression nut and tube support (not
included), slide nut and ferrule over 3/8” tubing, insert tube
support and connect to the cold water supply valve. (See
Figure 5) Insert other end into filter INLET fitting as shown in
Figure 1.
11. Remove sanitary protective cap from filter. Ensure both
o-rings are present on the filter and are seated into grooves;
moisten o-rings with water. DO NOT use any petroleum
products to lubricate the o-rings.
Correct Incorrect
Figure 4
Figure 5
Figure 3
• Allow a minimum of 3” (7.6 cm) clear space under the system to facilitate fi lter changes.
• All components should be accessible and have a suffi cient amount of clearance on all sides of
the system to facilitate servicing.
Figure 2
IMPORTANT INSTALLATION INSTRUCTIONS
Note: White tube from head is a filter vent tube outlet. DO NOT remove, kink or obstruct white tube.
3/8” Tubing
3/8” Compression Nut
3/8” Tube Ferrule
3/8” Tube Support
Cold Water
Supply Valve
The following installation instructions described are based on copper plumbing with 3/8” compression
fittings. Additional fittings may be required to connect to cold water supply.
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