What is the different between this and the white spool solder with the same part number that is sold by the same sellers for a few dollars more?

There isn't any difference between the white spool or the black spool. At one time, Kester had been using both black and white spools for their solder products. This image is a representative image.

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⚡ Solder smarter, not harder — join the pros who never settle for less!

COMPACT PORTABLE - Pencil-style spool designed for precision and ease of use on the go.
HIGH MOBILITY FLUX - Ensures smooth, reliable production line soldering with minimal rework.
INSTANT WETTING POWER - Experience lightning-fast solder flow for flawless joints every time.
PROVEN INDUSTRY LEADER - Trusted for over 40 years in professional electronics assembly.
OPTIMAL 63 37 SN PB RATIO - Perfect balance for superior electrical conductivity and mechanical strength.

KesterSOLDER 24-6337-0018 is a 0.5kg spool of premium 63/37 Sn/Pb rosin core solder wire, renowned for its instant wetting and fast spreading flux. With over four decades of industry dominance, it delivers reliable, high-quality solder joints ideal for professional electronics assembly and production line efficiency.

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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Manufacturer	Kester Solder
Part number	00Z525
Item Weight	454 g
Product Dimensions	2.54 x 2.54 x 2.54 cm; 453.59 g
Item model number	44 Rosin Flux
Style	Pencil
Power source type	Corded Electric
Item Package Quantity	1
Head Style	Pencil
Special Features	Portable
Specific uses	Electronics Assembly
Included components	Flux
Batteries Included?	No
Batteries Required?	No

KESTER SOLDER 24-6337-0018 SOLDER WIRE, 63/37 SN/PB, 0.5kg

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