View all sizes / colors

Replacement Part Reservoir Tank for waterflosser compatible with Waterpik (WP-450)

★★★★★

4.4 (207 reviews)

$16.99

Amazon Price
as of Jun 11 2026, 04:59 AM

Check Price at Amazon →

Brand: Wasserflosser

ASIN: B083GCFLB2

✓ In Stock.

🔥 Real Customer Reviews

★★★★★

(5.0)

2024-09-21

Satisfied

Replacement part was prompt and in good shape and it saved me from buying a new water pik

Reviewed by Real Customer

★★★★★

(5.0)

2025-02-21

Perfect fit

I needed a replacement. It fitted like a glove.

Reviewed by Real Customer

★★★★★

(5.0)

2026-01-16

Perfect fit

This replacement reservoir saved me the expense of purchasing an entire new unit.

Reviewed by Real Customer

★★★★★

(5.0)

2025-12-12

Perfect

It was a perfect match!

Reviewed by Real Customer

★★★★★

(5.0)

2025-08-09

Fits just like the original

Works like a charm.

Reviewed by Real Customer

★★★★★

(5.0)

2024-12-04

Perfect Fit

The replacement reservoirs for both Waterpik flossers snapped in easily and work well in our units.

Reviewed by Real Customer

★★★★★

(5.0)

2025-04-16

Perfect fit!

I cracked my original tank and needed a new one, this replacement worked perfectly.

Reviewed by Real Customer

★★★★★

(5.0)

2026-01-26

Works like original

The tank works like the one that came with my unit.

Reviewed by Real Customer

⚡ Customers Also Viewed

Discover More →

AuokMar Bundles 1B27 Straight Wavy Bundles Human Hair 8A Peruvian Straight Hair 3 Bundles 100% Virgin Unprocessed Human Hair Weave Black to Blonde Hair Bundle 14 16 18 inch

★★★★★

(2)

$18.62 Check →

Rancho Gordo Cranberry Heirloom Beans, Four Pack

★★★★★

(16)

$38.59 Check →

Oreola Real Remy Human Hair Extensions for Full Head with Invisible Miracle Wire, Jet Black #1 Color Fish Line Hairpiece for Full Head 120 Grams 20 Inch

★★★★★

(220)

$77.00 Check →

White 6.5 Inch Banana Clip Hair Clincher Interlocking Two Sides Hair Comb

★★★★★

(13)

$52.37 Check →

Hair Crab Claw/Updos Grip/Jaw Clip/Barrette

★★★★★

(2)

$3.99 Check →

Ashore Stationery - 100 Sheets

★★★★★

(1)

$19.99 Check →

Mirenesse French Kiss Super Glossy Lipstick, Hydrating Line Filling Brightening Gloss Finish with Vitamin C + Vitamin E, Vegan and Toxin Free, Flirtini 0.07 oz

★★★★★

(14)

$19.97 Check →

ME! Bath Coconut And Lime Bath Soaks - 6ct

★★★★★

(14)

$9.99 Check →

Max Beauty Long Curly Wave Cosplay Wig with Braid for Mother of Dragons for Halloween Wigs for Game of Thrones Season 5-8

★★★★★

(1)

$40.22 Check →

Anime Cosplay Synthetic Wig 11 Colors Japanese Kanekalon Heat Resistant Fiber Full Wig with Bangs Long Layered Curly Wavy Vogue 23'' / 58cm for Women Girls Lady Fashion and Beauty (golden blonde)

★★★★★

(14)

$61.20 Check →