Surge Cap

$3.15 $5 In stock

Designed for performance and maximum flow. The Surge™ valve technology maximizes flow rate and self-seals to eliminate leaks and splatter during activity. An ideal replacement cap for HydraPak Squeeze Bottles and newer model Polar Bottles (12oz, 20oz, 24oz, 30oz sizes).

**Please verify cap compatibility before purchase. Does not fit legacy Polar Bottles made prior to 2006.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Olivia ★★★★★ Oct 18, 2026

The valve genuinely self-seals mid-sip, so I can toss the bottle in my bag without a single drop escaping. Flow rate feels noticeably faster than my old cap, and it's held up through a dozen trail runs now.

Scarlett I. ★★★★★ Oct 13, 2026

The self-sealing valve actually works—no drips down my shirt mid-run like my old cap. Flow rate is noticeably faster too, I'm drinking way more without stopping to fiddle with it.

Isabella Z. ★★★★★ Oct 11, 2026

I swapped out the stock cap for this one and the flow rate is noticeably faster—no more squeezing like crazy to get a sip. And the self-sealing really works, no drips when I toss it in my bag.