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  • Fluval U4 Underwater Filter

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    From $69.99 (New)
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Buy from Amazon $80.72$36.00 $85.00 $75.00 $65.00 $55.00 $45.00 Dec Mar Jun Sep Dec Mar Jun Sep Dec Mar Jun 2014 2015 $69.99, Sep 16 7:06 pm$54.95, Nov 19 4:05 pm$59.95, Nov 24 - Dec 5$54.95, Nov 19 4:05 pm$62.49, Dec 1 11:13 am$59.95, Nov 24 - Dec 5$63.07, Dec 3 - Dec 12$59.95, Nov 24 - Dec 5$63.07, Dec 3 - Dec 12$49.95, Dec 15 - Jan 9$63.07, Dec 3 - Dec 12$53.95, Feb 6 - Feb 16$63.07, Dec 3 - Dec 12$39.95, Feb 17 3:34 pm$63.07, Dec 3 - Dec 12$53.95, Feb 18 - Mar 18$69.99, Feb 27 - Mar 3$53.95, Feb 18 - Mar 18$58.33, Mar 4 8:52 am$53.95, Feb 18 - Mar 18$69.99, Mar 5 - Mar 14$53.95, Feb 18 - Mar 18$75.96, Mar 16 - Mar 19$53.95, Feb 18 - Mar 18$69.99, Mar 24 - Mar 25$53.95, Feb 18 - Mar 18$72.86, Mar 26 - Mar 27$53.95, Feb 18 - Mar 18$69.99, Mar 28 - Apr 5$53.95, Feb 18 - Mar 18$72.86, Apr 6 - Apr 7$53.95, Feb 18 - Mar 18$67.00, Apr 8 6:55 am$53.95, Feb 18 - Mar 18$69.99, Apr 9 - Apr 11$53.95, Feb 18 - Mar 18$67.99, Apr 12 - Apr 15$53.95, Feb 18 - Mar 18$72.86, Apr 16 - Apr 17$53.95, Feb 18 - Mar 18$69.99, Apr 21 - May 12$53.95, Feb 18 - Mar 18$69.99, Apr 21 - May 12$58.00, May 3 - May 4$69.99, Apr 21 - May 12$59.99, May 5 - May 18$72.11, May 12 - May 18$59.99, May 5 - May 18$69.99, May 19 - Jun 5$69.99, May 21 - May 30$77.30, May 30 - Jun 3$69.99, May 19 - Jun 5$77.30, May 30 - Jun 3$72.70, Jun 3 2:48 am$69.99, May 19 - Jun 5$77.27, Jun 3 5:56 pm$75.93, Jun 5 4:30 am$69.99, May 19 - Jun 5$67.99, Jun 7 - Jun 9$64.99, Jun 6 7:17 am$39.99, Jun 7 - Jul 5$69.98, Jun 10 - Jun 12$62.00, Jun 9 - Jun 12$39.99, Jun 7 - Jul 5$69.99, Jun 13 - Jun 27$69.99, Jun 23 - Jun 26$39.99, Jun 7 - Jul 5$77.76, Jun 27 - Jul 1$60.88, Jun 27 - Jun 29$39.99, Jun 7 - Jul 5$77.76, Jun 27 - Jul 1$59.99, Jun 30 4:58 am$39.99, Jun 7 - Jul 5$77.39, Jul 2 - Jul 23$63.53, Jul 1 - Jul 9$39.99, Jun 7 - Jul 5$77.39, Jul 25 - Aug 11$69.99, Jul 11 - Aug 17$39.99, Jun 7 - Jul 5$77.39, Jul 25 - Aug 11$71.25, Jul 31 - Aug 12$69.99, Jul 11 - Aug 17$69.99, Jul 11 - Aug 17$69.99, Aug 12 - Aug 17$64.44, Aug 13 9:17 pm$69.99, Jul 11 - Aug 17$69.99, Aug 12 - Aug 17$64.34, Aug 17 1:22 am$69.99, Jul 11 - Aug 17$69.99, Aug 12 - Aug 17$64.33, Aug 17 11:53 pm$62.96, Nov 19 - Nov 20$59.81, Nov 19 - Nov 21$54.82, Nov 19 - Nov 24$62.93, Nov 21 - Nov 24$58.52, Nov 22 - Nov 24$54.82, Nov 19 - Nov 24$60.53, Nov 25 12:23 pm$56.29, Nov 25 12:23 pm$52.36, Nov 25 12:23 pm$58.51, Nov 27 - Nov 29$54.45, Nov 27 5:03 am$50.34, Nov 27 - Nov 28$57.65, Nov 29 - Nov 30$53.61, Nov 30 11:09 am$48.54, Nov 29 - Nov 30$58.55, Dec 1 - Dec 2$54.45, Dec 1 - Dec 2$50.34, Nov 30 - Dec 2$54.88, Dec 4 - Dec 8$51.04, Dec 4 - Dec 8$46.57, Dec 4 - Dec 8$53.90, Dec 10 - Dec 11$49.59, Dec 10 7:25 am$45.57, Dec 9 - Dec 11$69.99, Dec 12 - Dec 13$69.99, Dec 12 - Dec 13$49.88, Dec 12 1:05 pm$55.99, Dec 14 3:02 pm$55.99, Dec 14 3:02 pm$52.07, Dec 14 - Dec 15$69.99, Dec 15 - Jan 28$69.99, Dec 15 - Jan 28$54.62, Dec 17 5:43 am$69.99, Dec 15 - Jan 28$69.99, Dec 15 - Jan 28$57.35, Dec 18 5:52 am$69.99, Dec 15 - Jan 28$69.99, Dec 15 - Jan 28$65.02, Dec 22 9:42 pm$69.99, Dec 15 - Jan 28$69.99, Dec 15 - Jan 28$62.55, Dec 25 4:24 am$69.99, Dec 15 - Jan 28$69.99, Dec 15 - Jan 28$63.18, Dec 27 12:37 am$69.99, Dec 15 - Jan 28$69.99, Dec 15 - Jan 28$61.52, Dec 30 5:52 am$69.99, Dec 15 - Jan 28$69.99, Dec 15 - Jan 28$65.09, Dec 31 - Jan 1$69.99, Dec 15 - Jan 28$69.99, Dec 15 - Jan 28$45.00, Jan 2 - Jan 24$69.99, Dec 15 - Jan 28$69.99, Dec 15 - Jan 28$40.00, Jan 25 - Feb 1$55.99, Jan 28 - Jan 29$55.99, Jan 28 - Feb 1$40.00, Jan 25 - Feb 1$55.99, Jan 28 - Feb 1$54.00, Feb 1 2:31 am$40.00, Jan 25 - Feb 1$56.77, Feb 2 - Feb 4$53.50, Feb 2 - Feb 4$36.00, Feb 2 - Feb 4$76.49, Feb 4 - Feb 6$69.99, Feb 4 - Feb 22$48.89, Feb 6 2:37 am$69.99, Feb 4 - Feb 22$69.99, Feb 6 - Feb 22$53.83, Feb 8 12:07 am$69.99, Feb 4 - Feb 22$69.99, Feb 6 - Feb 22$53.72, Feb 10 8:45 am$69.99, Feb 4 - Feb 22$69.99, Feb 6 - Feb 22$62.16, Feb 13 5:35 am$69.99, Feb 4 - Feb 22$69.99, Feb 6 - Feb 22$65.09, Feb 14 - Feb 22$66.49, Feb 23 - Feb 26$66.49, Feb 23 - Feb 26$61.84, Feb 23 - Feb 26$69.99, Feb 26 - Mar 8$69.99, Feb 26 - Mar 1$65.09, Feb 28 - Mar 1$72.24, Mar 1 - Mar 3$69.99, Feb 26 - Mar 8$67.18, Mar 3 3:02 am$69.99, Feb 26 - Mar 8$69.99, Mar 4 - Mar 9$65.09, Mar 4 - Mar 8$62.24, Mar 10 6:53 pm$59.99, Mar 9 - Mar 11$54.99, Mar 9 - Mar 12$69.99, Mar 11 - Mar 13$58.99, Mar 12 - Mar 20$54.99, Mar 9 - Mar 12$69.99, Mar 15 2:30 pm$58.99, Mar 12 - Mar 20$52.99, Mar 13 - Mar 17$72.24, Mar 17 - Mar 19$58.99, Mar 12 - Mar 20$52.99, Mar 13 - Mar 17$69.99, Mar 25 - Mar 29$61.38, Mar 20 - Apr 1$52.99, Mar 13 - Mar 17$66.74, Mar 31 - Apr 1$61.38, Mar 20 - Apr 1$52.99, Mar 13 - Mar 17$62.24, Apr 2 - Apr 4$52.99, Mar 13 - Mar 17$49.99, Apr 3 - Apr 4$69.99, Apr 9 - Apr 12$66.49, Apr 5 - Apr 11$52.99, Mar 13 - Mar 17$63.74, Apr 12 12:31 pm$63.74, Apr 13 - Apr 15$52.99, Mar 13 - Mar 17$69.99, Apr 16 4:02 am$66.49, Apr 16 - Apr 18$52.99, Mar 13 - Mar 17$66.74, Apr 17 - Apr 23$61.38, Apr 18 - Apr 24$52.99, Mar 13 - Mar 17$69.99, Apr 26 - Apr 27$61.38, Apr 26 - May 8$52.99, Mar 13 - Mar 17$66.74, Apr 28 - Apr 30$61.38, Apr 26 - May 8$52.99, Mar 13 - Mar 17$62.24, May 2 4:58 am$61.38, Apr 26 - May 8$52.99, Mar 13 - Mar 17$66.74, May 3 - May 4$61.38, Apr 26 - May 8$52.99, Mar 13 - Mar 17$63.74, May 6 - May 8$61.38, Apr 26 - May 8$52.99, Mar 13 - Mar 17$69.99, May 11 - May 13$52.99, Mar 13 - Mar 17$49.68, May 10 - May 24$55.26, May 13 9:04 pm$52.99, Mar 13 - Mar 17$49.68, May 10 - May 24$59.50, May 15 - May 17$52.99, Mar 13 - Mar 17$49.68, May 10 - May 24$69.08, May 19 - May 21$52.99, Mar 13 - Mar 17$49.68, May 10 - May 24$59.08, May 24 4:13 pm$52.99, Mar 13 - Mar 17$49.68, May 10 - May 24$69.99, Jun 1 7:21 am$61.38, Jun 1 - Aug 5$52.99, Mar 13 - Mar 17$66.74, Jun 3 4:17 pm$61.38, Jun 1 - Aug 5$52.99, Mar 13 - Mar 17$69.99, Jun 4 9:01 pm$61.38, Jun 1 - Aug 5$52.99, Mar 13 - Mar 17$66.74, Jun 10 - Jun 14$61.38, Jun 1 - Aug 5$52.99, Mar 13 - Mar 17$69.99, Jun 16 11:45 am$61.38, Jun 1 - Aug 5$52.99, Mar 13 - Mar 17$67.99, Jun 18 - Jun 22$61.38, Jun 1 - Aug 5$52.99, Mar 13 - Mar 17$66.74, Jun 24 1:11 am$61.38, Jun 1 - Aug 5$52.99, Mar 13 - Mar 17$69.99, Jun 25 - Jun 28$61.38, Jun 1 - Aug 5$52.99, Mar 13 - Mar 17$64.55, Jun 30 - Jul 2$61.38, Jun 1 - Aug 5$52.99, Mar 13 - Mar 17$69.99, Jul 4 - Jul 10$61.38, Jun 1 - Aug 5$52.99, Mar 13 - Mar 17$64.55, Jul 13 4:51 am$61.38, Jun 1 - Aug 5$52.99, Mar 13 - Mar 17$69.99, Jul 15 - Jul 16$61.38, Jun 1 - Aug 5$55.80, Jul 16 7:45 am$73.98, Jul 18 - Jul 21$61.38, Jun 1 - Aug 5$55.80, Jul 16 7:45 am$69.99, Jul 23 - Jul 27$61.38, Jun 1 - Aug 5$55.80, Jul 16 7:45 am$73.98, Jul 29 2:40 am$61.38, Jun 1 - Aug 5$55.80, Jul 16 7:45 am$69.99, Jul 30 - Aug 6$61.38, Jun 1 - Aug 5$55.80, Jul 16 7:45 am$66.49, Aug 7 - Aug 15$64.55, Aug 6 - Aug 12$55.80, Jul 16 7:45 am$64.55, Aug 6 - Aug 12$64.55, Aug 16 11:24 am$55.80, Jul 16 7:45 am$66.49, Aug 18 - Aug 19$64.55, Aug 6 - Aug 12$55.80, Jul 16 7:45 am$64.55, Aug 6 - Aug 12$64.55, Aug 21 - Aug 23$54.87, Aug 21 - Aug 23$64.55, Aug 6 - Aug 12$63.74, Aug 24 - Aug 30$54.18, Aug 24 - Aug 30$64.55, Aug 6 - Aug 12$64.55, Aug 31 - Sep 3$54.87, Aug 31 - Sep 3$64.55, Aug 6 - Aug 12$57.79, Sep 5 - Sep 7$49.12, Sep 5 - Sep 7$64.55, Aug 6 - Aug 12$64.55, Sep 8 - Sep 12$51.60, Sep 9 11:22 am$64.55, Aug 6 - Aug 12$64.55, Sep 8 - Sep 12$54.18, Sep 10 11:52 am$69.99, Sep 13 - Sep 17$68.98, Sep 16 10:00 am$54.87, Sep 12 11:24 am$64.55, Sep 17 8:57 am$64.55, Sep 18 - Sep 20$54.87, Sep 12 11:24 am$69.99, Sep 22 - Sep 27$68.98, Sep 22 - Sep 27$54.87, Sep 12 11:24 am$68.98, Sep 22 - Sep 27$67.99, Sep 29 - Oct 5$54.87, Sep 12 11:24 am$68.98, Sep 22 - Sep 27$59.49, Oct 7 7:23 am$54.87, Sep 12 11:24 am$68.98, Sep 22 - Sep 27$67.99, Oct 9 - Oct 14$54.87, Sep 12 11:24 am$67.99, Oct 9 - Oct 14$66.14, Oct 14 - Nov 10$54.87, Sep 12 11:24 am$69.99, Oct 15 3:13 pm$66.14, Oct 14 - Nov 10$54.87, Sep 12 11:24 am$67.99, Oct 29 11:34 am$66.14, Oct 14 - Nov 10$54.87, Sep 12 11:24 am$69.99, Oct 31 - Nov 10$66.14, Oct 14 - Nov 10$54.87, Sep 12 11:24 am$66.14, Oct 14 - Nov 10$64.99, Nov 12 11:25 pm$54.87, Sep 12 11:24 am$69.56, Nov 15 - Nov 19$61.88, Nov 15 - Nov 19$54.87, Sep 12 11:24 am$69.99, Nov 21 - Nov 26$68.51, Nov 21 - Dec 2$54.87, Sep 12 11:24 am$68.51, Nov 21 - Dec 2$63.51, Nov 27 9:55 am$54.87, Sep 12 11:24 am$69.99, Nov 29 - Dec 29$68.51, Nov 21 - Dec 2$54.87, Sep 12 11:24 am$69.99, Nov 29 - Dec 29$55.87, Dec 4 6:20 pm$54.87, Sep 12 11:24 am$69.99, Nov 29 - Dec 29$63.52, Dec 7 - Dec 12$54.87, Sep 12 11:24 am$69.99, Nov 29 - Dec 29$61.70, Dec 14 - Dec 20$54.87, Sep 12 11:24 am$69.99, Nov 29 - Dec 29$61.70, Dec 14 - Dec 20$61.10, Dec 20 - Dec 22$69.99, Nov 29 - Dec 29$61.10, Dec 20 - Dec 22$60.81, Dec 22 - Dec 25$69.99, Nov 29 - Dec 29$60.81, Dec 22 - Dec 25$59.49, Dec 25 12:16 am$69.99, Nov 29 - Dec 29$61.41, Dec 27 - Dec 29$52.91, Dec 27 7:03 pm$69.99, Nov 29 - Dec 29$61.41, Dec 27 - Dec 29$69.99, Jan 2 - Feb 22$61.40, Jan 2 10:00 pm$69.99, Jan 2 - Feb 22$61.26, Jan 4 - Jan 5$69.99, Jan 2 - Feb 22$60.83, Jan 7 - Jan 11$69.99, Jan 2 - Feb 22$59.89, Jan 12 - Jan 14$69.99, Jan 2 - Feb 22$69.29, Jan 15 - Jan 20$69.99, Jan 2 - Feb 22$64.13, Jan 25 - Jan 29$69.99, Jan 2 - Feb 22$69.29, Feb 1 - Feb 22$69.29, Feb 1 - Feb 22$55.99, Feb 25 - Mar 3$73.98, Mar 6 - Mar 12$62.99, Mar 6 - Mar 27$69.99, Mar 18 - Mar 21$62.99, Mar 6 - Mar 27$73.98, Mar 27 - Apr 5$62.99, Mar 6 - Mar 27$73.98, Mar 27 - Apr 5$69.91, Apr 2 2:23 am$73.98, Mar 27 - Apr 5$62.99, Apr 5 2:51 am$80.72, Apr 10 9:43 pm$69.99, Apr 10 9:43 pm$73.98, Apr 13 10:48 pm$62.99, Apr 13 - Apr 26$69.99, Apr 19 - Apr 26$62.99, Apr 13 - Apr 26 4,07428,622 31,250 24,219 17,188 10,156 Jan Mar May Jul Sep Nov Jan Mar May 2015 2016

Price Details

New

Latest $69.99 7 hrs ago
Highest $80.72 Apr 10, '16
Lowest $52.83 Dec 9, '14
Average $73.85 (30d avg)
$70.27 (90d avg)
$69.76 (180d avg)
$68.31 (365d avg)
$68.64 (Lifetime average)
Added Sep 16, 2013

3rd Party New

Latest $62.99 7 hrs ago
Highest $69.99 Apr 10, '16
Lowest $39.95 Feb 17, '14
Average $64.40 (30d avg)
$65.91 (90d avg)
$65.07 (180d avg)
$63.59 (365d avg)
$62.98 (Lifetime average)
Added Sep 16, 2013

3rd Party Used

Last Seen $52.91 Dec 27, '15
Highest $75.93 Jun 5, '14
Lowest $36.00 Feb 2, '15
Average $60.52 (180d avg)
$55.10 (365d avg)
$55.10 (Lifetime average)
Added Sep 16, 2013

Sales Rank

30 day average: 16,830
90 day average: 12,596

Product Description

Fluval U4 underwater Filter with three stage filtration is ideal for use in fresh, marine or reptile environments. Stage 1 foam removes large particles. In stage 2, the poly/carbon cartridge traps fine debris, improves water clarity and removes impurities. In stage 3, BioMax provides optimal biological filtration efficiency.

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