Quintessential pH Calibration Fluid

Because we believe in quality our products are meticulously sourced/handcrafted and in order to ensure freshness we will not keep large quantities of stock on our shelf that may age. All products that are not in stock can be pre-ordered and will be available within 5-7 days as a result. The pre-order system is activated. If you want to send in-stock items immediately then ensure to make seperate checkouts for in-stock items and pre-order items which will mean two (2) courier costs.