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| Boelter website copyright 2013, 3M 3000HEX Scotch-Brite Low Scratch Hex Scour Pad, site visited Oct. 29, 2018, https://www.myboelter.com/3m-scotch-brite-low-scratch-hexag-scour-sponge-75040031157.html (Year: 2013). |
| Scotch-Brite 09634 Low Scratch Scour Pad 2000Hex, smileamazon website reviews 2018, site visited Oct. 29, 2018, https://smile.amazon.com/Scotch-Brite-09646-Scratch-Sponge-3000Hex/dp/B07DM9DSYJ/ref=cm_cr_arp_d_product_top?ie=UTF8 (Year: 2018). |