(case of 4) Eaton TRAFGF20B AF, Arc Fault/GF, Ground Fault Dual -Purpose, Duplex Receptacle with wallplate 20A 125V , Brown, two pole, three wire, groundingEaton$89.77
(case of 8) Eaton socket adapter, One socket to one socket with two 250W NEMA 1-15R outlets, 125V, Medium base, White, Thermoplastic, 715-3W-SPEaton$16.77