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$8.05, Sep 9 4:37 pm $5.49, Oct 31 7:27 pm $4.39, Nov 22 - Dec 26 $5.99, Dec 28 - Jan 30 $4.79, Jan 30 - Feb 13 $5.99, Feb 14 - Jun 16 $5.99, Feb 14 - Jun 16 $4.81, May 3 - May 8 $5.99, Feb 14 - Jun 16 $4.38, May 10 - May 12 $5.99, Feb 14 - Jun 16 $4.81, May 13 - May 14 $5.99, Feb 14 - Jun 16 $4.30, May 17 - May 20 $5.99, Feb 14 - Jun 16 $4.83, May 23 5:25 am $5.99, Feb 14 - Jun 16 $1.70, May 24 - May 25 $5.99, Feb 14 - Jun 16 $4.83, Jun 1 - Jun 2 $5.99, Feb 14 - Jun 16 $1.70, Jun 3 - Jun 4 $5.99, Feb 14 - Jun 16 $4.83, Jun 5 - Jun 6 $5.99, Feb 14 - Jun 16 $1.70, Jun 13 - Jun 18 $5.90, Jun 17 - Jun 24 $1.70, Jun 13 - Jun 18 $5.90, Jun 17 - Jun 24 $4.83, Jun 19 - Jun 20 $5.90, Jun 17 - Jun 24 $4.87, Jun 21 - Jun 23 $5.39, Jun 24 - Aug 25 $2.70, Jun 23 - Jun 29 $5.39, Jun 24 - Aug 25 $4.83, Jul 2 - Jul 5 $5.39, Jun 24 - Aug 25 $4.93, Jul 6 - Jul 9 $5.39, Jun 24 - Aug 25 $2.70, Jul 10 - Jul 13 $5.39, Jun 24 - Aug 25 $4.83, Jul 15 2:13 am $5.39, Jun 24 - Aug 25 $4.93, Jul 16 - Jul 17 $5.39, Jun 24 - Aug 25 $2.25, Jul 19 - Jul 23 $5.39, Jun 24 - Aug 25 $4.93, Jul 24 - Aug 18 $5.39, Jun 24 - Aug 25 $4.38, Aug 24 7:09 am $5.99, Aug 26 - Aug 27 $0.54, Aug 25 - Sep 4 $5.39, Aug 28 - Sep 3 $0.54, Aug 25 - Sep 4 $5.99, Sep 4 - Oct 28 $4.38, Sep 5 - Jan 21 $5.39, Oct 29 - Oct 31 $4.38, Sep 5 - Jan 21 $5.99, Nov 1 - Nov 22 $4.38, Sep 5 - Jan 21 $4.79, Nov 23 - Nov 29 $4.38, Sep 5 - Jan 21 $5.09, Nov 30 - Dec 3 $4.38, Sep 5 - Jan 21 $5.99, Dec 4 - Feb 13 $4.38, Sep 5 - Jan 21 $5.99, Dec 4 - Feb 13 $4.99, Jan 21 - Feb 22 $5.62, Feb 14 2:00 am $4.99, Jan 21 - Feb 22 $5.99, Feb 14 - Mar 30 $4.99, Feb 24 - Mar 4 $5.99, Feb 14 - Mar 30 $3.90, Mar 5 - Mar 6 $5.99, Feb 14 - Mar 30 $4.99, Mar 7 - Mar 17 $5.99, Feb 14 - Mar 30 $5.57, Mar 12 - Mar 15 $4.99, Mar 18 - Apr 1 $5.93, Mar 31 - Apr 1 $5.57, Mar 12 - Mar 15 $4.99, Mar 18 - Apr 1 $5.99, Apr 26 - May 24 $5.57, Mar 12 - Mar 15 $4.99, Apr 26 - May 1 $5.99, Apr 26 - May 24 $5.57, Mar 12 - Mar 15 $5.19, May 1 - May 4 $5.99, Apr 26 - May 24 $5.57, Mar 12 - Mar 15 $5.50, May 4 - May 11 $5.99, May 26 - Aug 18 $5.57, Mar 12 - Mar 15 $5.04, May 17 - Jun 17 $5.99, May 26 - Aug 18 $5.57, Mar 12 - Mar 15 $5.50, Jun 18 1:02 am $5.99, May 26 - Aug 18 $5.57, Mar 12 - Mar 15 $5.04, Jun 19 - Jun 21 $5.99, May 26 - Aug 18 $5.57, Mar 12 - Mar 15 $5.50, Jun 22 - Aug 18 $5.57, Mar 12 - Mar 15 $5.50, Jun 22 - Aug 18 $5.39, Aug 19 - Sep 7 $5.57, Mar 12 - Mar 15 $5.50, Jun 22 - Aug 18 $4.31, Sep 8 11:48 pm $5.57, Mar 12 - Mar 15 $5.50, Jun 22 - Aug 18 $5.39, Oct 9 - Nov 25 $5.50, Jun 22 - Aug 18 $5.39, Oct 9 - Nov 25 $4.80, Oct 15 - Oct 16 $5.50, Jun 22 - Aug 18 $5.39, Oct 9 - Nov 25 $4.85, Oct 17 8:16 pm $5.50, Jun 22 - Aug 18 $5.39, Oct 9 - Nov 25 $5.39, Oct 9 - Nov 25 $5.24, Nov 2 - Nov 25 $5.09, Nov 26 - Nov 30 $4.86, Nov 27 - Dec 21 $5.39, Dec 1 - Dec 21 $4.86, Nov 27 - Dec 21 $5.99, Jan 2 - Jan 21 $5.49, Dec 22 - Jan 5 $5.99, Jan 2 - Jan 21 $0.01, Jan 6 - Jan 7 $5.99, Jan 2 - Jan 21 $5.49, Jan 8 - Jan 12 $5.99, Jan 2 - Jan 21 $5.50, Jan 13 - Mar 21 $5.50, Jan 13 - Mar 21 $5.37, Jan 22 7:43 pm $5.99, Jan 24 - Feb 4 $5.50, Jan 13 - Mar 21 $5.50, Jan 13 - Mar 21 $5.09, Feb 6 7:36 am $5.99, Feb 7 - Mar 9 $5.50, Jan 13 - Mar 21 $8.77, Mar 12 - Mar 18 $5.50, Jan 13 - Mar 21 $7.49, Mar 21 6:14 pm $5.50, Jan 13 - Mar 21 $8.99, Mar 24 - Mar 27 $6.23, Mar 24 - Mar 30 $8.22, Mar 30 10:37 pm $6.23, Mar 24 - Mar 30 $5.99, Apr 2 - Apr 24 $5.89, Apr 2 - Apr 21 $5.99, Apr 2 - Apr 24 $5.51, Apr 24 7:49 am 762 5,958
5,125
4,000
2,875
1,750
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Price Details
New
Latest
$5.99 1 day ago
Highest
$8.99 Mar 24, '16
Lowest
$4.31 Sep 8, '15
Average
$6.78 (30d avg)
Added
Sep 9, 2013
3rd Party New
Latest
$5.51 1 day ago
Highest
$6.23 Mar 24, '16
Lowest
$0.01 Jan 6, '16
Average
$5.99 (30d avg)
Added
Sep 9, 2013
3rd Party Used
Last Seen
$4.85 Oct 17, '15
Highest
$5.57 Mar 12, '15
Lowest
$4.80 Oct 15, '15
Average
$4.80 (365d avg)
Added
Sep 9, 2013
Sales Rank
30 day average: 2,343 2,036
Product Description
Tests tap water & freshwater aquariums for general hardness (GH) and carbonate hardness (KH).Helps prevent fish stress caused by rapid pH shifts, the result of low levels of KH.
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