Handheld TDS Meter - AquaFX

Split your purchase into smaller payments with the provider you prefer. Pick your plan at checkout.

Checking out with Shop Pay? The Shop Pay screen only offers Shop Pay Installments. To pay with PayPal, Klarna, or Affirm, select Check out as guest to see every payment option, or use the PayPal button in your cart.

Shop Pay Installments

• 4 interest-free payments every 2 weeks on orders from $50 to $999.99
• 2 interest-free payments on orders from $35 to $50
• Monthly plans on orders from $150
• Check out with Shop Pay, then choose an installment plan

Payment options are offered by Affirm and are subject to an eligibility check and might not be available in all states. Monthly plans may include interest (0–36% APR). CA residents: Loans by Affirm Loan Services, LLC are made or arranged pursuant to a California Finance Lender license.

Learn more about Shop Pay Installments

PayPal Pay Later

• Pay in 4: 4 interest-free payments every 2 weeks on purchases from $30 to $1,500
• Pay Monthly: 3 to 24 monthly payments on purchases from $49 to $10,000
• Select PayPal in your cart or at checkout, then choose Pay Later

Pay in 4 is available to consumers upon approval and is not currently available to residents of MO. Pay Monthly is subject to consumer credit approval, with a fixed APR of 9.99–35.99%. The lender for Pay in 4 is PayPal, Inc. (NMLS #910457). The lender for Pay Monthly is WebBank.

Learn more about PayPal Pay Later

Klarna

• Pay in 4: 4 interest-free payments every 2 weeks on orders of $35 or more
• No interest or fees when you pay on time
• Choose Klarna as your payment method at checkout

Klarna Pay in 4 is subject to approval and isn't available in Hawaii, U.S. territories (excluding Puerto Rico), or for APO/FPO/DPO addresses. Late fees may apply.

Learn more about Klarna

Affirm

• Pay in 4: 4 interest-free payments every 2 weeks on eligible orders from $50
• Monthly plans with rates from 0–36% APR based on credit
• No late fees or hidden fees
• Choose Affirm as your payment method at checkout

Payment options through Affirm are provided by these lending partners: affirm.com/lenders. Your rate will be 0–36% APR based on credit and is subject to an eligibility check. Affirm Pay in 4 is 0% APR. Options depend on your purchase amount and may vary by merchant. A down payment may be required. CA residents: Loans by Affirm Loan Services, LLC are made or arranged pursuant to a California Financing Law license.

Learn more about Affirm