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Buy from Amazon $179.99$0.25 $200.00 $150.00 $100.00 $50.00 Jul Sep Nov Jan Mar May Jul Sep Nov Jan Mar May 2014 2015 2016 $162.50, May 5 - May 8$79.90, May 5 - May 17$164.86, May 9 - May 21$79.90, May 5 - May 17$164.86, May 9 - May 21$78.85, May 19 - May 22$161.06, May 21 - May 22$78.85, May 19 - May 22$155.00, May 23 - Jun 1$74.98, May 24 6:37 am$155.00, May 23 - Jun 1$74.84, May 26 6:26 am$155.00, May 23 - Jun 1$74.81, May 28 2:09 am$155.00, May 23 - Jun 1$74.77, May 30 2:54 am$155.00, May 23 - Jun 1$73.95, Jun 1 1:59 am$148.04, Jun 2 - Jun 3$73.83, Jun 2 9:04 am$142.80, Jun 4 - Jun 6$73.80, Jun 4 8:49 am$142.80, Jun 4 - Jun 6$73.75, Jun 6 11:03 am$179.99, Jun 7 - Jun 9$73.65, Jun 8 4:51 am$179.99, Jun 7 - Jun 9$49.89, Jun 9 2:29 pm$171.18, Jun 10 - Jun 15$49.73, Jun 11 10:08 pm$171.18, Jun 10 - Jun 15$49.70, Jun 13 12:47 pm$171.18, Jun 10 - Jun 15$47.80, Jun 15 2:08 pm$164.76, Jun 16 - Jun 19$47.72, Jun 17 2:37 am$164.76, Jun 16 - Jun 19$47.63, Jun 19 - Jun 22$159.73, Jun 20 9:39 pm$47.63, Jun 19 - Jun 22$158.44, Jun 21 - Jun 22$47.63, Jun 19 - Jun 22$158.18, Jun 24 - Jun 25$46.87, Jun 24 4:46 pm$104.18, Jun 26 - Jun 27$46.70, Jun 26 6:17 am$104.18, Jun 26 - Jun 27$46.67, Jun 27 10:04 pm$152.08, Jun 30 6:39 am$46.59, Jun 30 6:39 am$152.12, Jul 1 1:14 am$46.55, Jul 1 1:14 am$148.46, Jul 3 2:05 pm$46.39, Jul 3 2:05 pm$149.66, Jul 4 6:04 pm$46.37, Jul 4 6:04 pm$146.58, Jul 7 2:22 am$46.14, Jul 7 2:22 am$142.08, Jul 8 8:58 am$46.13, Jul 8 8:58 am$98.00, Jul 10 - Jan 8$45.95, Jul 10 7:17 pm$98.00, Jul 10 - Jan 8$45.84, Jul 12 1:06 am$98.00, Jul 10 - Jan 8$44.70, Jul 14 4:11 pm$98.00, Jul 10 - Jan 8$44.55, Jul 16 3:10 am$98.00, Jul 10 - Jan 8$44.45, Jul 17 12:14 pm$98.00, Jul 10 - Jan 8$44.24, Jul 19 9:02 pm$98.00, Jul 10 - Jan 8$43.95, Jul 21 4:41 pm$98.00, Jul 10 - Jan 8$43.74, Jul 24 12:04 am$98.00, Jul 10 - Jan 8$43.50, Jul 25 7:24 pm$98.00, Jul 10 - Jan 8$43.35, Jul 27 2:00 pm$98.00, Jul 10 - Jan 8$43.15, Jul 29 9:23 am$98.00, Jul 10 - Jan 8$43.13, Jul 31 5:01 am$98.00, Jul 10 - Jan 8$43.11, Aug 1 11:57 pm$98.00, Jul 10 - Jan 8$43.00, Aug 3 6:22 pm$98.00, Jul 10 - Jan 8$42.98, Aug 5 3:02 pm$98.00, Jul 10 - Jan 8$42.89, Aug 7 5:40 pm$98.00, Jul 10 - Jan 8$42.85, Aug 8 7:54 pm$98.00, Jul 10 - Jan 8$42.70, Aug 10 6:08 pm$98.00, Jul 10 - Jan 8$42.65, Aug 12 2:05 pm$98.00, Jul 10 - Jan 8$42.49, Aug 14 4:37 pm$98.00, Jul 10 - Jan 8$42.39, Aug 16 1:44 pm$98.00, Jul 10 - Jan 8$42.15, Aug 17 4:31 pm$98.00, Jul 10 - Jan 8$41.95, Aug 19 11:43 pm$98.00, Jul 10 - Jan 8$41.74, Aug 22 2:49 am$98.00, Jul 10 - Jan 8$41.63, Aug 24 3:37 am$98.00, Jul 10 - Jan 8$41.54, Aug 25 5:43 am$98.00, Jul 10 - Jan 8$41.34, Aug 27 7:52 am$98.00, Jul 10 - Jan 8$41.25, Aug 28 9:20 am$98.00, Jul 10 - Jan 8$41.05, Aug 30 2:05 pm$98.00, Jul 10 - Jan 8$40.84, Sep 1 7:18 pm$98.00, Jul 10 - Jan 8$40.65, Sep 4 2:14 am$98.00, Jul 10 - Jan 8$40.57, Sep 6 7:56 am$98.00, Jul 10 - Jan 8$40.52, Sep 8 1:50 pm$98.00, Jul 10 - Jan 8$40.29, Sep 10 7:45 pm$98.00, Jul 10 - Jan 8$39.85, Sep 13 1:47 am$98.00, Jul 10 - Jan 8$39.70, Sep 15 1:14 am$98.00, Jul 10 - Jan 8$39.40, Sep 19 - Sep 22$98.00, Jul 10 - Jan 8$39.25, Sep 23 8:01 pm$98.00, Jul 10 - Jan 8$39.15, Sep 25 7:16 pm$98.00, Jul 10 - Jan 8$39.00, Sep 27 9:37 pm$98.00, Jul 10 - Jan 8$38.80, Sep 29 10:24 pm$98.00, Jul 10 - Jan 8$38.65, Oct 2 1:33 am$98.00, Jul 10 - Jan 8$39.45, Oct 4 - Nov 9$98.00, Jul 10 - Jan 8$39.40, Nov 14 10:12 pm$98.00, Jul 10 - Jan 8$39.30, Nov 18 - Dec 18$98.00, Jul 10 - Jan 8$34.00, Dec 22 - Dec 26$98.00, Jul 10 - Jan 8$33.85, Dec 28 - Jan 4$98.00, Jul 10 - Jan 8$32.85, Jan 5 - Jan 10$97.80, Jan 9 10:43 am$32.85, Jan 5 - Jan 10$97.54, Jan 10 2:51 pm$32.85, Jan 5 - Jan 10$98.00, Jan 11 - Jan 26$32.75, Jan 11 - Jan 18$98.00, Jan 11 - Jan 26$32.65, Jan 20 2:00 am$98.00, Jan 11 - Jan 26$29.81, Jan 21 6:26 pm$98.00, Jan 11 - Jan 26$27.73, Jan 23 - Jan 24$98.00, Jan 11 - Jan 26$27.59, Jan 26 3:26 pm$93.10, Jan 30 2:03 am$22.91, Jan 30 2:03 am$89.84, Jan 31 9:21 pm$19.10, Jan 31 9:21 pm$85.18, Feb 2 5:36 pm$16.45, Feb 2 5:36 pm$80.68, Feb 4 11:58 am$13.76, Feb 4 11:58 am$75.68, Feb 6 5:56 am$11.80, Feb 6 5:56 am$73.28, Feb 8 1:19 am$10.10, Feb 8 1:19 am$71.90, Feb 9 7:54 pm$8.52, Feb 9 7:54 pm$67.40, Feb 11 3:14 pm$7.75, Feb 11 3:14 pm$63.62, Feb 13 10:39 am$7.25, Feb 13 10:39 am$60.30, Feb 15 6:43 am$6.95, Feb 15 6:43 am$57.48, Feb 17 6:39 am$6.45, Feb 17 6:39 am$56.84, Feb 19 3:29 am$5.90, Feb 19 3:29 am$55.52, Feb 21 1:25 am$5.60, Feb 21 1:25 am$55.10, Feb 22 11:27 pm$5.20, Feb 22 11:27 pm$53.84, Feb 24 8:45 pm$1.43, Feb 24 8:45 pm$53.52, Feb 26 7:01 pm$0.25, Feb 26 - Mar 3$52.90, Feb 28 4:35 pm$0.25, Feb 26 - Mar 3$52.06, Mar 3 7:13 am$0.25, Feb 26 - Mar 3$51.60, Mar 5 6:19 am$0.44, Mar 5 6:19 am$50.82, Mar 7 6:05 am$0.97, Mar 7 6:05 am$50.36, Mar 9 5:10 am$0.92, Mar 9 5:10 am$50.14, Mar 11 12:25 pm$1.13, Mar 11 12:25 pm$86.23, Mar 13 7:17 pm$5.80, Mar 13 7:17 pm$76.64, Mar 16 9:14 pm$5.60, Mar 16 9:14 pm$72.44, Mar 19 12:22 am$5.45, Mar 19 12:22 am$69.60, Mar 21 4:19 am$5.30, Mar 21 4:19 am$67.22, Mar 23 11:28 am$5.05, Mar 23 11:28 am$65.30, Mar 25 6:03 pm$4.85, Mar 25 6:03 pm$61.98, Mar 28 12:40 am$4.55, Mar 28 12:40 am$59.42, Mar 30 9:25 am$4.24, Mar 30 9:25 am$57.24, Apr 1 6:55 pm$3.85, Apr 1 6:55 pm$55.48, Apr 4 9:53 am$3.15, Apr 4 9:53 am$53.76, Apr 7 1:42 am$2.40, Apr 7 1:42 am$45.00, Apr 9 - Apr 15$1.70, Apr 9 6:56 pm$45.00, Apr 9 - Apr 15$4.20, Apr 12 2:55 pm$45.00, Apr 9 - Apr 15$3.90, Apr 15 11:38 am$20.00, Apr 18 - Apr 23$3.65, Apr 18 1:13 am$20.00, Apr 18 - Apr 23$3.40, Apr 20 3:47 pm$20.00, Apr 18 - Apr 23$3.00, Apr 23 9:19 am$20.00, Apr 26 - May 2$2.60, Apr 26 2:07 pm$20.00, Apr 26 - May 2$2.25, Apr 29 11:27 am$20.00, Apr 26 - May 2$1.98, May 2 5:42 am$45.00, May 4 - May 14$1.65, May 4 8:20 pm$45.00, May 4 - May 14$1.25, May 8 8:26 am$45.00, May 4 - May 14$0.97, May 11 6:00 pm$45.00, May 4 - May 14$0.93, May 14 11:27 pm$44.14, May 19 5:28 am$0.89, May 19 - May 23$45.00, May 23 - Jun 5$0.89, May 19 - May 23$45.00, May 23 - Jun 5$0.99, May 27 4:32 pm$45.00, May 23 - Jun 5$0.89, Jun 1 - Jun 14$44.56, Jun 10 4:07 am$0.89, Jun 1 - Jun 14$42.56, Jun 14 12:23 am$0.89, Jun 1 - Jun 14$45.00, Jun 17 - Jun 25$0.62, Jun 17 5:37 pm$45.00, Jun 17 - Jun 25$0.48, Jun 21 - Jul 11$33.66, Jun 29 - Jul 11$0.48, Jun 21 - Jul 11$113.98, Jul 15 12:09 pm$1.98, Jul 15 12:09 pm$176.48, Jul 19 1:39 am$4.49, Jul 19 - Aug 2$179.38, Aug 6 2:35 am$4.48, Aug 6 2:35 am$103.76, Aug 9 9:27 pm$4.30, Aug 9 9:27 pm$94.78, Aug 13 3:54 pm$4.09, Aug 13 3:54 pm$71.00, Aug 17 9:46 am$3.90, Aug 17 9:46 am$63.00, Aug 21 3:55 am$3.69, Aug 21 3:55 am$58.02, Aug 24 9:26 pm$3.48, Aug 24 9:26 pm$55.50, Aug 28 4:14 pm$3.31, Aug 28 4:14 pm$54.92, Sep 1 9:04 am$3.08, Sep 1 9:04 am$54.90, Sep 5 6:33 am$2.88, Sep 5 6:33 am$54.34, Sep 9 4:35 am$2.68, Sep 9 4:35 am$55.31, Sep 13 1:34 am$2.51, Sep 13 1:34 am$55.19, Sep 16 10:14 pm$2.43, Sep 16 10:14 pm$54.06, Sep 20 6:56 pm$2.29, Sep 20 6:56 pm$52.32, Sep 24 5:05 pm$2.09, Sep 24 5:05 pm$50.44, Sep 28 2:20 pm$1.92, Sep 28 2:20 pm$49.38, Oct 2 3:36 pm$1.72, Oct 2 3:36 pm$48.22, Oct 6 6:13 pm$1.53, Oct 6 6:13 pm$47.18, Oct 10 9:31 pm$1.32, Oct 10 9:31 pm$88.84, Oct 14 8:32 pm$2.37, Oct 14 8:32 pm$93.18, Oct 18 4:34 pm$2.25, Oct 18 4:34 pm$92.82, Oct 20 4:04 pm$2.17, Oct 20 4:04 pm$92.36, Oct 24 12:27 pm$2.05, Oct 24 12:27 pm$91.90, Oct 28 10:47 am$2.94, Oct 28 10:47 am$86.22, Nov 1 9:56 am$2.98, Nov 1 9:56 am$94.21, Nov 5 11:57 am$2.95, Nov 5 11:57 am$105.70, Nov 9 2:09 pm$2.94, Nov 9 2:09 pm$102.19, Nov 13 5:08 pm$2.95, Nov 13 - Nov 18$109.27, Nov 18 12:11 am$2.95, Nov 13 - Nov 18$101.63, Nov 22 9:31 am$1.95, Nov 22 9:31 am$95.51, Nov 26 8:45 pm$1.91, Nov 26 8:45 pm$91.00, Dec 1 5:30 pm$1.87, Dec 1 5:30 pm$83.49, Dec 6 2:46 pm$2.95, Dec 6 2:46 pm$84.75, Dec 11 6:04 pm$2.91, Dec 11 6:04 pm$81.56, Dec 16 7:08 pm$2.86, Dec 16 7:08 pm$83.11, Dec 21 4:27 pm$2.90, Dec 21 4:27 pm$82.12, Dec 27 4:55 am$2.96, Dec 27 - Jan 25$80.19, Dec 31 9:24 pm$2.96, Dec 27 - Jan 25$80.09, Jan 5 3:31 pm$2.96, Dec 27 - Jan 25$78.47, Jan 10 12:17 pm$2.96, Dec 27 - Jan 25$77.49, Jan 15 11:13 am$2.96, Dec 27 - Jan 25$77.19, Jan 20 - Jan 25$2.96, Dec 27 - Jan 25$84.77, Jan 30 - Feb 4$32.95, Jan 30 - Mar 30$90.95, Feb 9 3:45 pm$32.95, Jan 30 - Mar 30$89.69, Feb 14 11:22 pm$32.95, Jan 30 - Mar 30$89.01, Feb 20 7:28 am$32.95, Jan 30 - Mar 30$88.15, Feb 25 8:27 pm$32.95, Jan 30 - Mar 30$80.05, Mar 7 6:02 am$32.95, Jan 30 - Mar 30$79.90, Mar 18 3:16 pm$32.95, Jan 30 - Mar 30$79.55, Mar 30 3:43 am$32.95, Jan 30 - Mar 30 121,2663,749,291 3,125,000 2,343,750 1,562,500 781,250 Oct Dec Feb Apr Jun Aug Oct Dec Feb Apr 2015 2016

Price Details

3rd Party New

Last Seen $79.55 Mar 30, '16
Highest $179.99 Jun 7, '14
Lowest $20.00 Apr 26, '15
Average $79.97 (30d avg)
$82.75 (90d avg)
$84.34 (180d avg)
$74.16 (365d avg)
$88.05 (Lifetime average)
Added May 5, 2014

3rd Party Used

Last Seen $32.95 Mar 30, '16
Highest $79.90 May 5, '14
Lowest $0.25 Feb 26, '15
Average $32.95 (30d avg)
$22.83 (90d avg)
$12.68 (180d avg)
$7.43 (365d avg)
$21.84 (Lifetime average)
Added May 5, 2014

Sales Rank

30 day average: 2,107,765
90 day average: 1,701,235

Product Description

Textbook for Skin Diver Instructor certification.

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